Search results
Results from the WOW.Com Content Network
The W72 offered many improvements over the standard L78 400 Pontiac. One of the key upgrades were the 6x4 heads. The standard head seen on an L78 400 Pontiac was the low compression 6x8 head, while the 6x4 head seen on the W72 had hardened valve seats for a higher RPM operating range, improved air flow, and higher compression.
A Silver streak 8 in a 1949 Pontiac Streamliner - note the large intake silencer leading to an oil-bath air cleaner on the left side of the engine. The Pontiac straight-8 engine is an inline eight-cylinder automobile engine produced by Pontiac from 1933 to 1954. Introduced in the fall of 1932 for the 1933 models, it was Pontiac's most powerful ...
This engine featured a conventional one piece cylinder head, and the distributor was moved to the side of the block. The number of main bearings was increased to four. Like the Pontiac Straight-8 engine it also featured full-pressure oiling and insert type precision main and rod bearings. These two latter features greatly increased longevity ...
1916–1923 Buick Non-Removable-Head; 1916–1927 Oldsmobile Series 30 inline-6; 1923–1930 Buick Removable-Head; 1923–1928 Oakland inline-6; 1926–1927 Pontiac Split-Head (also modified for GMC trucks) 1928–1936 Chevrolet Stovebolt; 1928–1950 Oldsmobile F-Series (also used in Buick Marquette) 1928–1954 Pontiac GMR (also modified for ...
The Iron Duke engine (also called 151, 2500, Pontiac 2.5, and Tech IV) is a 151 cu in (2.5 L) straight-4 piston engine built by the Pontiac Motor Division of General Motors from 1977 until 1993. Originally developed as Pontiac's new economy car engine, it was used in a wide variety of vehicles across GM's lineup in the 1980s as well as supplied ...
With the exception of the Parisienne Safari, the Firebird, and Fiero, beginning in 1988 all Pontiacs, with the exception of the Firebird, switched to front-wheel drive platforms. For the first time since 1970, Pontiac was the number three domestic car maker in America. The median age of Pontiac owners dropped from 46 in 1981 to 38 in 1988.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
For 1977, the W72 shared the same air cleaner and shared the same 500577 cast block as the L78, but received the 6x4 heads, whereas the L78 only received the lower compression 6x8 heads. The 6x4 heads were used on early Pontiac 350 blocks that helped increase the compression and also had hardened valve seats for a higher RPM operating range. [40]