Ads
related to: 1970s pontiac 400 engine build kit for adults full body for sale
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.
In 1978, the Le Mans and other GM mid-sized cars were considerably downsized and lost some 600-800 lb. Pontiac's engines were also downsized, with the standard engine being the Buick 3.8 L 231 ci V6, Pontiac 265 ci V8, or optional Pontiac 4.9 L 301 ci V8 for 1978, (a Chevy 305 ci V8 in California). 1978 also saw Pontiac's 350 ci & 400 ci engine ...
The car was a trim package of the Pontiac Le Mans, but powered by the Pontiac 400 rated at 200 hp (149 kW; 203 PS) (the T/A 6.6 "W72" version, not the base 400, which made 180). Cars specifically destined for Californian or high-altitude county dealers, featured the Oldsmobile 403 Small Block making 185 hp (138 kW; 188 PS).
The shakers had a "6.6 Litre" decal for all L78 Pontiac 400 and L80 Oldsmobile 403 engines. Only the optional W72 Pontiac 400 received the "T/A 6.6" decal. [39] As Pontiac had discontinued the 455 in the previous model year, a modified 400 Pontiac V8 dubbed the "T/A 6.6" with the RPO W72 became available as a pay-extra upgrade to the standard ...
Full-size car, upper trim of Chieftain Safari: 1955 1957 GM A platform: 1 Full-size station wagon Bonneville: 1958 2005 GM B platform GM G platform GM H platform: 10 Full-size car except a brief period of 1982–1986 Tempest: 1960 1970 GM Y platform, GM A platform: 3 Compact (1960–1962), mid-size (1963–1970) Ventura: 1960 1977 GM B platform ...
As Pontiac had discontinued the 455 in the previous model year, a modified 400 Pontiac V8 dubbed the "T/A 6.6" RPO W72 with a single four-barrel 800CFM Rochester Quadrajet carburettor rated at 200 bhp (203 PS; 149 kW) at 3,600 rpm and a maximum torque of 325 lb⋅ft (441 N⋅m) at 2,400 rpm, as opposed to the regular "6.6 Litre" 400 (RPO L78 ...