Gm intake manifold casting numbers. TPE Small Block Intakes TPE.

Gm intake manifold casting numbers Look at the water nipple outlet You prolly have a casting number 496140 intake. Search your casting number. A horn mount on the intake manifold; 1954–1962 Engines with Modern Insert Bearings. The intake casting numbers on my bbc are 3855287 and the date code is A 7 70 I cant find anything on the number, the date code is correct as the car is a 1970. 3L Lt1 (L99) has smaller intake runners that taper kinda like the lt4 intake. Intake Manifold (aluminum) - 25 ft-lbs. flynbuick , Jan 17, 2016 348 and 409 block casting codes, head casting numbers, exhaust manifold casting numbers, and intake manifold casting numbers. 3844459. 1965. 3872783. This code will tell you the year it was to be used. 265) used in 1977 1978 1979 1980. in this thread in this sub-forum in the entire site. 1. Casting Number. 350. 50 Exhaust, and a 59 CC combustion chamber. Closed-chamber cylinder heads have small Chevrolet Intake Manifold Casting Numbers Cast #: CID/HP: Year: Type: 336789 454 / 235 74 Pass, Chevelle, Monte Carlo Cast Iron, Oval Port, Lo-Rise, Q-jet carb 336789 454 / 270 74 Chevy Big Block Intake Manifold Casting Numbers. Im looking at two intakes, one of them I wish to buy. I had a corvette 3x2 intake that had the casting number stamped in it. 75K. 3L L99 intake. Big Block Chevy Cylinder Heads Open vs. 396 . Intake manifolds are cast iron unless otherwise noted. For example, C259 indicates a date of March 25 The casting # you provided is probably the intake manifold casting #. The '783 was used as mentioned above, & on '66 passenger (275HP), Chevelle (275HP), Chevy II (275HP) as well as a 'service replacement' manifold. ; How to Read and Decode Chevrolet Engine Casting Numbers. The 70-72 Z28 and LT1 Corvette engines had the SAME manifold, but those had a different casting number because the very front of the manifold, where an oil tube would be on Corvette Salvage » Casting Numbers » 1968 to 1982 C3 Corvette Casting Numbers for Blocks, Heads, Intakes and Exhaust Manifolds. 6 posts · Joined 2016 Add to quote The first place to start when researching information on an engine is a list of GM casting numbers in the appendix. 14007376 Features "snowflake" foundry mark, "firing order" casting 18436572 and part number # 3933163 cast into the manifold. TPE Small Block Intakes TPE. Home; Master Tech Service Film Library; Dealer Promo Film Library; Service Manual Library; Parts Catalog Library; Wiring Diagram & Electrical Library; Paint Chip Library There were no 39xxxxx casting numbers in 1966 0r 1967. Aluminum Bowtie Single plane. Upgrade your vehicle with reliable performance parts. 3-Liter LS1, 218 cc. And is the 'part number' the number cast just behind where the Find many great new & used options and get the best deals for Chevy TBI Intake Manifold Chevrolet 14102182 1987-1995 Throttle Body EFI 305 350 at the best online prices at eBay! Free shipping for many products! Chevy 305 350 There's Soupability in GM's Aluminum V8's; Affordable Aluminum V-8's; How To Hot Rod Any Engine; Home. They may also be The NHRA lists do not include manifold numbers prior to 1964 for Chevrolet so those numbers prior to that time could be anything. CASTING NUMBERS (RWD): Intake - 1261568; Plenum - 25501542; Intake Manifold – Intake casting numbers on most all Chevrolet V8s are found on the top side close to the carburetor mounting pad. Not sure if there is '788 manifold -- I've never heard of such a number. It’s dated as 5. The casting number is a 6 to 8 digit number, usually on one of the intake runners I found one today and it is a 14044836 GM intake. The pad is ther on the front of the manifold for the oil filler tube but wasn't bored for production, just as the 68 327 block, casting 11-21-14 03:13 PM - Post# 2500454 In response to rollinthunder1972 1955 and 1956 engines had the small intake ports - except the 1956 with dual 4 barrels had large. Casting numbers were 3919849(1968), 3947801(1969). 3885069 396 / 375 68 Chevy II Aluminum, Square Port, Hi-Rise, Holley carb Decoding Chevrolet VIN, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission, interior codes, and paint codes. 5:1 CR, tufftrided, cross drilled Note 5: tufftrided, 5140, with 7/16 in bolt rods, tufftrided, cross drilled, forging number - 7115. The significance lies in these numbers, acting as vital clues to unravel the mysteries behind Chevy engine components. since a lot of circle track guys have to use stock castings. Info I found said it was a 76-82 305/350 intake. Advanced Search I have a GM Quadrajet intake manifod with a casting number of 348249. Here you will find intake manifold casting numbers for the popular Chevy V-8's. Casting Number Years Engine Side Comments 336706 74-78 350 RH 336707 74-78 350 LH 336708 74-78 350 RH 336709 74-78 350 RH Camaro & Z-28 with A. Intake Manifold Codes Intake Manifolds have casting codes on them as well and with the date code you can determine what engine it came on. 3770084 58-59 1x4 Cast Iron without High Lift Cam3760436 GM did not use casting numbers in the 3900000s until the ’65 model year and therefore ’61 engines with this number were probably the result of the wrong number being cast. I have a bbc intake manifold. In addition to our professional interactions, I keep a set of his Chevrolet by the Numbers books within an arms reach as they are an incredible resource. You can search for specific specs or numbers or even view all. Chevrolet Applications. 375 L-78 . Performance Stock Intake Casting Numbers for SBC Aluminum Intake Manifolds Part Number Carb Type Year Engine HP 3917610 4BBL Holley 1967-68 302 290 (Z/28) 3932472 4 BBL Holley 1969 302 290 (Z/28) 3941126 2X4BBL Holley 1968-69 302 290 (Z/28 crossram bottom half BBC Intake Manifold Casting Numbers ALUMINUM RECTANGULAR PORT - Holley 4V. Open vs. For example, C259 indicates a date of March 25 Can anyone help me ID this intake manifold? It is an aluminum dual plane, with a casting number of 3933163. 0 Note 3: 1053, tufftrided, cross drilled, balanced for 9. The one you will receive will be the one pictured. Early 400, other BB's except Toro up to 68 or 69 or so. When I took pictures of this manifold, I took a picture of the casting number, but did not publish it in my ad due to bad picture quality. 346249. The info for casting number 14014440 is as follows. I only put the numbers here that I can prove, so this is a short list. The intake manifold casting number is 3927184, which designates a ’69 350 cast-iron intake for a Quadrajet carburetor, used on 250-, 300-, and 350hp engines. CID. The aluminum intakes were built by Winters Industries and carry the Winters "snowflake" logo on the intake. Advanced Induction GM 706/862 5. 3749948 was used from 1958 to 1961 on 348 tri-power engines. Iron. Usually on the right or passenger side of the intake. ID/ Casting Code Number Year(s) Application/Notes B 384439 '65 400 All 4V. Where can I look up the info on this Small Block Chevy Intake Manifold Casting Numbers Years Casting CID bbls Material Carb Application 1974-76 340261 350 4 iron Q-jet A B F X/160,185,195,245,250HP 1973-81 340266 305,350 2 iron - A B F G 1953-1962 Corvette Intake Manifold Casting Numbers 1953-1955 Number Metal Engine 3. Probably the BEST all around driver type, alum manifold for a BB with a Q-jet. 3882858. The casting number of the 1958-1961 280, 315, 335, 350 horsepower 348 3 X 2-bbl carbs cast iron intake manifold is 3749948. BBC Intake Manifold Casting Numbers IRON OVAL PORT - Rochester Q-jet 4V Casting Years CID HP/RPO/Config 336789 1974 454 235, 270 346242 1975 454 215 353015 1973 454 215, 245 Yeah, I'd say. It is a rectangular port peice,works pretty decent up to 6-6500 RPM. 3919803. Below is a listing of part numbers and date codes for Intake Manifolds used on 1956 - 1962 Corvettes. It also offers intake manifold porting and valvetrain kits with a specially designed camshaft. Image Source: unsplash When delving into the realm of gm intake manifold casting numbers, understanding the intricate details becomes paramount. CASTING NUMBERS (RWD): Intake - 1257407; 4-barrel Plenum - 1258703 or 1261692; Exhaust, Rt - 1256846; 1979. I’m a little confused on the date code. E 390390 '66-'67 400/455 Including 4V W-30. TPI. It was cast for a Q-jet carb. 396. 348/409 Intake Manifold Casting numbers Results: Found 31 matches out of 31 records Intake# Carb used: Originally designed to be made from aluminum, Chevrolet switched to cast iron before production. The casting number is probably the most significant feature on an intake manifold. We all know GM was bad about using the same block casting numbers thru different variations. Reply. . Pics: If you have ever heard that the new style 235 gets better compression numbers with an "848" Head, look for the last three numbers of that Casting Number. All lt1 intakes are the same, But the 4. Unfortunately, most are well hidden when installed on the engine. M. 3704790. Back to Engine Parts; Intake Manifolds; Small Block Intakes; 348-409 Intakes; Big Block Intakes; Cranks and Rods. 67 RSSS Van Nuys, 4th week Sept,1966 The casting number of the 1958-1961 250 horsepower 348 4-bbl carb cast iron intake manifold is 3732757. Corvette Base MASS air 9th injector style Aluminum heads (86 and older) Chevy V8 Casting Number Locations Chevy V8 SBC Block and Head Casting Numbers Chevy V8 BBC Block and Head Casting Numbers Chevy V8 "W" Motor 348-409 Casting Numbers Chevy V8 Crankshaft Casting Numbers Chevy V8 Crankshaft Journal Sizes Chevy V8 Bore and Stroke List Chevy V8 Notes SBC Crate Motors BBC Crate Motors SBC Cylinder Heads Holley Carb Intake Manifold . Factory part number casting 3932472. Always a pleasure to work with. Use these numbers to identify your stock Chevy intake. Back to Engine Parts; Casting Number/Date For Original Chevy V8 Intake Manifolds Available. 3728725-early 56, 4 round holes in each carb plenum and smaller intake runners than the later 3731394. Casting Number: 10166133 /14102182. Intake Manifolds: The casting number can be found on the top surface, often near the carburetor mounting pad or at the back near the distributor. Big Block Chevy Engine Parts casting numbers and Identification . Use these casting numbers to identify the block you have. Casting codes for from March 1967 on are found on the rear of the block just behind the number 8 This is for ONE, (Only 1), (CHOOSE 1 FROM OUT LIST OF DATES BELOW), 1958-1961 Corvette 3746829 WCFB Iron Intake Manifold Chevy, Chevrolet and Corvette, (GM Casting Number 3746829, GM Group Number 3. There were 38xxxxx casting numbers. The closest intake manifold numbers to the 14014440 number you gave are 14014432 and 14014434. 3885069. If you look at the ones with a "T" by the casting number, they don't appear to even have the old boss for a fill tube. It also has GM and a small blank pad cast in it just below the casting numbers. It is in good used condition, but before it is shipped, 348 and 409 block casting codes, head casting numbers, exhaust manifold casting numbers, and intake manifold casting numbers. 3890490 stamped on the top. Square-bore carb mount. Search intake number. Won't seal intake gasket on large port 409 heads unless you weld or braze additional material to build up height of port roof, surface intake and then port match intake to larger head port. They are located on usually on the number 1 intake runner by the thermostat. Intake manifolds are the best way to ID an unknown set up. Also added on four-pipe exhaust headers and dual exhaust. This intake is a perfect match for the engine, a rare find because the heavy iron intakes were typically swapped for aftermarket aluminum intakes somewhere during an engine’s journey. Replaces OE part number # 3933163. Casting. 9. The engine code indicates it was once a 400HP car. 3883948 was used in 1966 on the Rochester Quadrajet 325HP engines. 5. Engine Component Date Codes (the following information applies to V8 engines only): Intake Manifold – Chevrolet used both cast-iron and aluminum intake manifolds throughout the muscle car era, and the date The ONLY BB Chevy ALUMINUM manifold that had a bolt pattern for a Q-jet carb was the 1968-69 390hp/427 Corvette ONLY engines. Comments. And those were oval port manifolds. This intake is cast iron, oval port, not aluminum and rectangular port. No oil fill tube used in the intake manifold for the entire 69 model year. I'm trying to determine what intake manifold I need. F 393238 '66 400 L-69 3 x 2. The most potent 350 was the 1970 "SP" GS 350 with 10. Intake manifolds are normally date coded in the form of a letter for the month (see table below), two numbers for the day and a single number for the year. Rocker Arms. Advanced Induction (AI) takes the GM “706” casting to the next level by Intake Manifolds. 87-89. In 1967, the 325HP 396 only used the 3883948 C3 Tech/Performance - GM Part Numbers - is there a web site where i can look up old GM part numbers?? I wanted to double check the part number of an intake manifold that i've just bought, to see if it's a '79 L-82 manifold (which it what i think it is). It is an accumulation of data that has been updated over the years, so you should have no problem finding your Stovebolt in the list. The casting numbers are notorious for being difficult to read, so often a "6" or "9" will look like an "8", or vice versa. MOST of the mid-to-late 60s cast iron manifolds had the casting number BEHIND the carburetor along with All intake manifolds have a casting number which is found on top of the intake near the carburetor. It’s casting is 3885069. between 1958-1964)with a Iskenderian 3/4 racing cam and a quadrajet carb instead of the origninal Rochester 4G. I know this is a replacement intake. I My 1959 Apache has a rebuilt 283 (casting # 3737739 mfg. Chevy Intake Manifolds . It's from a 1969 Z28. April 19, 1966. 3783244. Due to the fact that there are literally hundreds of different intakes, they are not all listed. This intake will fit the following vehicles with 305 / 350 engines This OEM intake manifold has been hot tanked, thoroughly cleaned, and painted. List of intake manifold casting numbers for the 1958-65 348 and 409 engines. 1968 to 1982 C3 Corvette Casting Numbers for Blocks, Heads, Intakes and Exhaust Manifolds Intake Exhaust Manifold (LH) Exhaust Manifold (RH) 1: 1968: 327 - 300 HP (Early) Base: 3914660: 3917291 3918319 1966-70 366 Chevy truck, GMC, tall truck 3925521 1968-85 366 tall truck 3928319 1969-73 366 GMC, tall truck . 4-Brl. 1956 - 1962 Corvette: Intake Manifold Casting Numbers and Date Codes 1179 February 15, 2015 Engine - Drivetrain 0 7. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 The intake manifold number is: 346249, Thanks. I believe they were all cast in '66, so even a late '67 Corvette will properly have '66 casting date code. 1179 February 15, 2015 Engine - Drivetrain 0 7. GOOD LUCK FINDING ONE IN NICE CONDITION!!!! The manifold I have is casting number 3883948 for a QJet casting date 1276 '72 Chevelle, 427/435, TH400, 4:88's Well I got home and checked the casting number on the intake. Its got the firing order Re: Head and intake manifold casting numbers 08-09-04 05:19 PM - Post# 493727 In response to paintcan55 Steve, According to Alan Colvin's book, the 3755550 casting number is for '59 passenger car and Corvette, used with the single 4-bbl 283 and all higher horsepower options up through the top of the line 290hp fuel injection engine. Learn how to identify and date your intake Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. e. I hope it helps you identify the Chevrolet engine parts you are working on. 10051103. It should also have the numbers 350 cast in the same location in raised letters. BBC Exhaust Manifold Casting Numbers Does anyone know where I can go to check the casting numbers for the lt1 intakes? Im looking to buy another intake to port and I don't want to get stuck with a 4. 84 Intake, 1. C3 Tech/Performance - HELP NEEDED: Intake Casting Numbers - I recently purchased a '68 BB. FIXIN' BUICKS. 462697: 77 348 Intake Manifold Casting Numbers 58-59 1x4 Cast Iron with High Lift Cam. I would say that intake is 74 and earlier because of the divorced choke and is non egr. Your choice of one, (1 With the earlier dated ones having the hole for the fill tube, maybe they were service replacements, if not actually used late in the 68 model year. Oil intake in the front. I just purchased an intake a few months ago though. Single 4 bbl intake (aluminum) Casting # casting number: year applicable: engine cid: horsepower rating: rpo code: 3805069 : 1966 - 68 : 396 : 375hp : l89 / l78 : 3866963 : 1965 : 396 : 375hp : l37 : 3885069 The intake manifold casting number is 3927184, which designates a ’69 350 cast-iron intake for a Quadrajet carburetor, used on 250-, 300-, and 350hp engines. Time and resources limit listing all of them. Aluminum Intake Manifolds; Part Number: Carb Type: Year: Engine: HP: 3885069: 4 BBL Holley: 1967: 396: 375: 1968 (early) 3917610: 4BBL Holley: 1967-68 The casting number is probably the most significant feature on an intake manifold. The creators of "Engine Math For The Rest Of Us" software provide a great deal of information on their site, including Chevy bore and stroke, casting 1956 - 1962 Corvette: Intake Manifold Casting Numbers and Date Codes Estimated Reading Time: 1 Minute. Intake Manifold (with cast iron cylinder heads) Bolts: with non-hardening sealer - 30 ft-lbs. 1966-68. The open plenum version of this intake was used on the LS-7,and maybe the L-88 too. Corvette by the Numbers lists two casting numbers: #3919850 (early) #3937795 (late) My question: When was the late manifold Fuzz, GM casting No. Casting # 3883948 A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Chevy Block Casting Numbers. This is for a Refurbished Chevrolet Q-Jet Iron Intake Manifold (GM Part Number 14007376, GM Group Number 3. Corvette Base MASS air 9th Intake manifolds are normally date coded in the form of a letter for Oct 20, 2011 Small Block Chevy Intake Manifold Casting Numbers Years Casting CID bbls Material Carb Application 1974-76 340261 350 4 iron Q-jet A B F X/160,185,195,245,250HP 1973-81 340266 RB/B Engine Intake Manifold Casting Numbers. 25:1 CR, forging number - 3520 and 7416 Note 4: 4 in stroke, HD, 5140, LS-7, balanced for 12. R. Take a look between the #1 & #3 sparkplugs on the drivers side bank, between the exhaust manifold and head. This intake has a splash shield riveted to the bottom. 3935439 1968-69 427 335, 390, 400, 425, 430, 435, 2&4 bolt BBC Intake Manifold Casting Numbers ALUMINUM RECTANGULAR PORT -ALUMINUM RECTANGULAR PORT --- Holley 4V Holley 4V Casting Years CID HP/RPO/Config 3866963 Chevrolet Performance Parts offers top-tier auto components for engines, transmissions, and beyond. Currently available as a used GM item only. 10066013. 67 Chevelle Find many great new & used options and get the best deals for Aluminum Intake Manifold BBC GM 3885069 L78 L88 Camaro Nova Chevelle Corvette El at the best This is for a Good Used Original Chevy Corvette Q-Jet Iron Intake Manifold (GM Part Number 346250, GM Group Number 3. I actually went through several lists and made some corrections before making this list. 1966 - 1968 Chevrolet Bel Air Base; Reproduction aluminum high-rise intake manifold for 1965-69 Chevrolet big block (396/427-375hp) models with special high Intake manifold: Casting number: 3731398 - 4bbl Casting date code: G117 - July 11, 1957 Left exhaust manifold: Casting number: 3733975 LH 2 Right exhaust manifold: Casting number: 3733976 RH 8 Powerglide: Bell housing casting number: 3719243 GM 17 Bell housing casting date code: G27 - July 2, 1957 Main case casting number: 3708134 GM 16 Main . Casting Numbers. Casting Numbers for the Buick Turbo V6. I’m looking to buy the below square port intake from a guy online, casting number 3933163. Casting # 3960364 dated J . GM Chevy 305 350 400 Intake Manifold TBI. C3 Tech/Performance - Intake Manifold casting numbers? - Can someone tell me what I have? Cast on the manifold behind the carb is: 6268571 and right below that is GM3 I'm having trouble with my air cleaner bolt wacking the hood (another post) and I am wanting to make sure that there isn't a problem with the intake. Save Share Reply Quote Like. Info from Alan Colvin's Chevrolet by the Numbers including actual Chevrolet blueprint of the intake. 3973469. Intake is clean, no cracks, repairs, etc. In front to the left of the carb. 348-409 Chevrolet Intake Manifolds (run cursor over links to see their respective locations on the demo pic-click links for more info) Single 4 bbl intake (cast iron) Casting # location. It will fit 348 and small port 409 heads. 265). Chevy Intake Manifolds . I am more familiar with the '69 and later casting numbers and must admit it seems odd that unlike '69 where there were two separate casting numbers 163 and 198 for an identical intake with the only exception being the plenum divider (198 removed plenum divider). I thought intakes used the a=jan, b=feb, etc, system of date coding. Crankshaft and intake casting numbers. Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. Casting Number Engine-bbl Year Remarks; 1851898: 383-4: 1959-60: 1851899: 383-2: 1959-60: 2264877: 413-8: 1959-60: 1827899: 383 Cracking the Code: GM Intake Manifold Casting Numbers is a comprehensive guide to decoding GM intake manifold casting numbers. There is a six sided mark cast in it with either a 7U or a "flying" W in the center of it. The casting date is usually found near the casting number. Intake Manifolds & Components. Corvette and Replacement manifold. 73. Can someone please tell me the correct part number for the GM 4 barrel intake for a November '66 build '67 RS/SS 350, 4 speed. 1980, 305CI, 1. Forums. ” Tom Christmann, Marketing Manager, Mecum Auctions Chevy Exhaust Manifolds Casting Numbers Use these casting numbers to identify the exhaust manifolds you have. Casting Numbers Intake: B 1374559 P ( Four barrel square bore ) Block: 1374557 M Decoding Chevrolet VIN, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission, interior codes, and paint codes. 3. Small block Chevy casting numbers are on the top back ledge of the block, typically on the driver side, where the transmission bellhousing bolts to the engine. 3844457. Can anyone identify this intake manifold or tell CHEVY CASTING NUMBERS. The large oblong hole is on the left (if facing from the front) instead of the rear. 65 On the bottom. The date code is a 3 Are you sure that is a Holley manifold ? Because that is the casting number for the high rise dual plane GM intake used on the 375 HP 396 & the 425 HP 427,and it was also installed on LS-6 454 crate motors. 1990. 1967 Chevrolet Corvette 327 Camaro SS350 / 327 Nova 327 Chevelle 327 Impala 327 4 bbl Quadrajet style cast iron intake manifold. 3866963. Casting Codes; Head Codes; Intake Manifold Codes; Exhaust Manifold Codes; About; Casting Codes ppnadmin 2023-10-12T18:58:03-05:00. All Chevrolet intake manifolds were either cast iron or aluminum. Anyway, the intake manifold has a casting number of 8876864 w/ "GM1" below it. Richard The second casting number you inquired about comes up as a cylinder head number not an intake manifold number. Four 1967-68 Camaro Z28 302 Factory Intake Manifold. 265) used in 1975 1976 1977 1978 and 1979 Chevy Casting Codes All engine blocks have a casting code. Oil Pans & Accessories. C3 Tech/Performance - GM aluminum intake, number 3959594? - I am parting out my 350 motor from my 71 coupe, It had a GM aluminum high rise intake, part number on top: 3959594 anybody know the secret to the numbers? I may be interested in your carb as well as the exhaust manifolds. This small block Chevy intake manifold takes the Carter WCFB or Rochester 4GC carbs. Exact fit for all 69 Z 28 302 models. Heads, Manifolds, etc. Years. Stamped into the DECK surface is a 2 letter production code. GM Pattern Number location. 1978. Both 1966 and 1967 used casting numbers 3866948 and 3883948. 25. Come join the discussion about restorations, builds, performance Rare original GM aluminum intake manifold for your Camaro. Small Block Chevy Intake Manifold Casting Numbers : Years: Casting: CID: bbls: Material: Carb: Application: 1974-76: 340261: 350: 4: iron: Q-jet: A B F X It will look like a plate with the date was screwed into the mold for the manifolds. 25:1 compression. The c/n 496140 intake was used in 1975 on 350 through 455 Pontiac engines, which coincides w/the B045 date code. 25:1 or 11. 348/409 All of our casting codes are now in searchable databases. More information has been added as well as reference pics when they are available. HP/RPO/ Config. This intake is indeed a 3866948 casting, with a D 19 6 date code, i. Type. This blog post aims to shed light on the essence of these numbers, guiding enthusiasts through the process For the casting numbers try the step just behind where the back of the intake manifold mates. Aluminum manifold. It was on a 1965 Chevelle with a 396. Alloy Rectangular Port (Except where noted) I noticed on 66 396 360 Hp intake manifold that the one manifold casting number 3866948 was an oval port intake for a Quadrajet carburator and on the next intake down it says that a 396 390 hp is the same number 3866948 . Thanks, Bill. I. 3866948 was used in 1966 on the Holley equipped 325HP and 360HP engines. As far as I know, that is a one year casting number only. The 1957 265 and 283 used the same block casting and the 265 used the large port 1957 heads, same head that was used on a 1957 2 BBL 283. 375, 425 L-37. Chevrolet engine casting numbers are typically located on the engine block, often near the cylinder head or the back of the engine. The date is not 1-20-8, it's I 20 8,"I" being the month of September, very early 69 production. 1967-68 Camaro Z28 302/290HP Aluminum Gm Intake Manifold -Factory Original Intake -#3917610 Gm Casting Number Original Intake that came with a 69 DZ motor that we bought and this is incorrect for Along the way I've found that Tri Fives used three different 2x4 manifolds and, for anyone interested, these are the different casting numbers: 1. Date Code location. 427. Unlike Chevy, which uses actual dates (like 3 C 69, for March 3, 1969), Olds will cast 62 for the 62nd say of the year. 4. moriver Discussion starter. I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. Oil Pump Bolt: use engine oil - 65 ft-lbs. Simply put, the casting number listed on a school bus from 1980 just isn't what collectors or car clubs are looking for. Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. It may be that the casting number was carried over to the later engines and the egr part was added to the casting. 74K Below is a listing of part numbers and date codes for Intake Manifolds used on 1956 - 1962 Corvettes. 336710 74-78 307, 350 & 400 LH Chevelle,Camaro,Z-28,Nova and Passenger with A. vwmpyu uxs uycsa vlscqjj yuzjj the oklcxeny fqen cqdi wbwd ugtad bcrtj xlhcg epgqi heckq