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CHEVROLET CYLINDER HEADS. 283/327. CAST NUMBER 3884520. 1.72 INTAKE VALVES. 1.50 EXHAUST VALVES. For those years, as per the NHRA tech bulletins that were supplied by the OEMs back then, the accepted cylinder heads for '68 and '69 were heads with casting numbers ending in 215, 063, 290, and I think one more but can't recall now. Aug 17, 2009 · Of the available aluminum heads, casting number 12363391 features oval 290cc intake ports, 110cc combustion chambers, and either a 2.25/1.88-inch or 2.19/1.88-inch valve combination (depending on ... Jan 30, 2013 · This chamber imprint can then be measured for its length with a number of different measuring devices of which a map route reader is both inexpensive and effective. For the following example, a Ford truck 292 ‘CITE’ casting head is being used. On this particular head, the measurement around the length of the combustion chamber is 10.63”. GM 1996-2000 454 ci - V8 cyl Cylinder Head - Casting : 10141279. PLEASE CHECK YOUR CASTING NUMBER TO MAKE SURE THAT YOU ORDER THE CORRECT HEAD. IF YOU ARE UNSURE PLEASE CALL US AT. 1-888-920-0052.
Alternate cylinder heads for the 426 race Hemi. Initially developed in 1969 with the same intake and exhaust valves, but with larger ports. Each intake port had 3.00 sq-in and the exhaust port had 2.10 sq-in. Intake valve angle was 35 degrees; exhaust valve angle was 23 degrees. D2 Alternate cylinder heads for circle track racing.
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Sep 28, 2013 · Bought for only $350, the engine provided a good block, crank, and rods, as well as the pair of "781" (casting number 336781) open-chamber, large oval-port heads. A good 454 steel crank came along in a trade, and it will be perfect for this engine. Garmin 5208 manual.
accueil engine code. Chevrolet. Chevrolet Big Block Cylinder Head Casting Numbers. RECTANGULAR PORT - Valve size 2.19 intake, 1.88 exhaust1968/1969 427 Corvette 390HP 4 speed 2 bolt block and heads. Cast 439 date is G-16-8 TO718IL Std bore, 063 heads G-5+9-8. Also have 68 Alum intakes and carbs. Many listings also note any problems that may concern you such as heavy pitting, broken or chipped bolt bosses, etc. If a VIN number is present on a block, he lists it.