3725306 Power Pack Chevy Heads 265 Chevrolet Corvette gasser 283 sbc. $149.00. $29.46 shipping. or Best Offer. Buick's first generation of V8 was offered from 1953 through 1956. It was an OHV pushrod engine like the then-new Oldsmobile "Rocket" V8.It became known as the "Nailhead" for the unusual vertical alignment of its small-sized valves, features that were the result of putting both valves on the intake manifold side of the "pent-roof" combustion chamber used in this engine series.
The old power pack heads that came on some 283's were 202,160's, so I would think the 305 heads should work just fine. Not sure about the resulting compression ratio though. FIFA Ultimate Team 21 SBC - Squad Building Challenges - ALL | Find the lowest BIN, Prices, Stats, Details, Graphs and more!Jan 12, 2015 · Chevy Small Block Head Casting Numbers C10 Trucks Library ... 283 Power Pack 3798996 327 63-67 3814480 283,327 60-67 3814482 327,350 62-67 low compression head, 75cc