Ad
related to: pontiac 326 engine specs
Search results
Results from the WOW.Com Content Network
Effectively, production Pontiac V8 blocks were externally the same size (326-455) sharing the same connecting rod length 6.625 in (168.3 mm) and journal size of 2.249" (except for the later short deck 301 and 265 produced in the late 1970s and early 1980s before Pontiac adopted universal GM engines).
This new V8 option for 1963 was Pontiac's 326 cubic inch (5.3 L) V8, an engine with the same external dimensions as the venerable Trophy 8 389, but different internal components designed to produce more torque. A new version of the automatic transmission (now officially stamped TempesTorque on the case) was redesigned to handle the new V8's ...
A new engine replaced the 326. This new engine was based on all existing Pontiac engine architecture and used the 389, 400, and 326 engines' crank at 3.75" stroke, and expanding the 326's 3.72" bore to 3.875" to give 353.8 cubic inches. It was marketed by Pontiac as a 350.
The Pontiac straight-6 engine is a family of inline-six cylinder automobile engines produced by the Pontiac Division of General Motors Corporation in numerous versions beginning in 1926. "Split Head" Six
This 326 was based on the big Pontiac's 389 V8 and shared many of the larger engine's dimensions and components with horsepower ratings of 260 and 280. The '63 326 Tempest/LeMans served as a testbed for the 389-powered 1964 GTO that would be based on a larger and more conventionally engineered Tempest introduced the following year.
Also for the 1968 model, the 326 cu in (5.3 L) engine was replaced by the Pontiac 350 cu in (5.7 L) V8, which actually displaced 354 cu in (5.8 L), and produced 265 hp (198 kW) with a two-barrel carburetor. An HO version of the 350 cu in (5.7 L) with a revised cam was also offered to start in that year, which developed 320 hp (239 kW).
The engine was the pinnacle of Pontiac engine development and was a strong performer that included a few race-specific features, such as provisions for dry-sump oiling. The only non-traditional Pontiac V8 engines were the 301 cu in (4.9 L) and the 265 cu in (4.3 L).
The Trophy 4 engine is a short-stroke, 45-degree inclined [4] inline four created from the right bank of the 389 V8 for the debut of the Tempest in 1961. Its 194.43 cu in (3.2 L) displacement is precisely half of the 389, with an identical bore and stroke of 4 + 1 ⁄ 16 in × 3 + 3 ⁄ 4 in (103.2 mm × 95.3 mm).
Ad
related to: pontiac 326 engine specs