![]() The 403 is a special block with a bore/stroke of 4.351"x3,385" (110.5x86mm) as saying that the short stroke favors high speeds engine. The 350ci's cylinder heads were manufactured by the PMD (Pontiac Motor Division) but only from 1977 to 1980. Oldsmobile V8 350ci (for 1977) and the famous 403ci (1977 to 1979) eventually to expand the range of the engine. Used from 1978 to 1981, producing from 105 to 115hp. In fact we must consider this V6 as a V8 350 which it would have been cut 2 cylinders. The 305 is 3.736"x3.48" (95x88.4 mm) bore and stroke and from 125 to 150hp depending on the year. So apart from the L6, the two V8 were installed from 1977 to 1981. ![]() This bio-diversity appeared in 1977.Ĭhevrolet V8 engine offered were only the small block 305ci (5.0L) and 350ci (5.7L), but also had to rely on the venerable six-cylinder fitted to the firebird base for almost forever. Unlike this time and our European cars, a Pontiac wasn't necessarily motorized by PONTIAC engine, and all displacements combined, there was also Chevrolet, Buick and Oldsmobile engines on the second generation firebird. This is to match the casting number in the table above not to be confused with the 60s. L = December) and two or three-digit day of the month, the last being the year. It consists of a letter (A = January, B = February. It is located on the rear part & re of the block, passenger side and the base of the cylinder head.Īll blocks have a date code of manufacture at the foot of the distributor. Below the serial numbers had to be sure to identify the engine size. In 1970, all blocks received three additional holes (5 in total per side) for the installation of engines in the new pontiac firebird chassis of the second generation. If it doesn't match, engine is not from the factory. It should be the end of the VIN code of the car (the panel). There is another code that is located along the lid and timing cover. The color codes in the table below are made to differentiate the four brands of engine fitted to the firebird. ![]() Generally we can see that PONTIAC for blocks codes beginning with "W" for engines with manual transmission and codes beginning with "Y" for engines with automatic transmission, this for the V8 engine. You will find a set of a pair of letters designating the engine code and number that is the serial number of the engine.īelow you will find the 180 codes for engines installed in firebird. Often it isn't visible at first sight either because it may be hidden by rust, paint or air conditioning compressor support. ![]() Identify a PONTIAC engine block is very simple, the code is entered, or rather "hit" on the front right of the cylinder block (when you're driving), close to the plane of the cylinder head gasket. Engine displacement / Compression ratio. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |