Editing Pontiac V8 engine (section)

====301 Turbo====
{{See also|Pontiac 301 Turbo}}
The 301 Turbo was unique since it had a beefier block than the 1977–79 versions (which carried on in the non-turbo versions in 1980 and 1981), a very mild camshaft with {{cvt|0.35|in|mm}} lift and 250 degrees gross duration, a {{cvt|60|psi|bar}} oil pump to ensure adequate oil to the oil-cooled [[Garrett AiResearch|Garrett]] TBO-305 Turbocharger, a rolled fillet crankshaft, a fully baffled oil pan, and a specific {{cvt|800|cuft/min|lk=in}} Quadrajet carburetor. This had extra-rich "DX" secondary metering rods and a remote vacuum source for the primary metering rod enrichment circuit to allow the Power Enrichment Vacuum Regulator (PEVR) to release the primary metering rods to move to the up position (enrichment) anytime during boosted conditions. This was to ensure there was enough fuel to cool the cast offset dished pistons. Boost was wastegate limited to {{cvt|9|+/-|1|psi|bar}}.

The 301 Turbo package mandated air conditioning, the THM350 (sometimes referred to as the CBC350 in various literature) non-lockup automatic transmission (THM350C lockup in 1981 Trans Ams), and 3.08 rear axle gearing. The 1980 301 [[Turbocharger|Turbo]] was rated at {{cvt|210|hp|kW|0}} at 4400&nbsp;rpm and {{cvt|345|lbft|Nm|0}} at 2800&nbsp;rpm. The 1981 301 Turbo gained the electronic controls with an O<sub>2</sub> sensor, feedback ECM and E4ME [[Quadrajet]] providing a slight reduction in output to {{cvt|205|hp|kW|0}} and {{cvt|340|lbft|Nm|0}}; however, these revisions did allow it to meet California emissions standards (The 1980 version did not). The 301 Turbo was limited to Trans Am and Formula Firebird production only.