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Rev · 11-19-2002, 05:44 PM

I used 351W heads for several years on my 289 block with a 302 crank, .030 over, making it a 306. Mine were later (75?) with larger (1.85/1.55) valves. They were professionally pocket ported and gasket matched. They were also milled to give 9.5/1 CR in my engine.

They worked great up to 5500 RPM and made lots of power. The only reason I changed them was to go to TFTW Al. heads. That did give me some extra power, but only about 30-35 HP. And that was with pocket porting/gasket match and 1.7 full roller rockers (old ones are only roller tip 1.6).

I still have these 351W heads with the roller tip rockers if anyone is interested.

Rev

11-19-2002, 05:44 PM	#4
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	351W heads I used 351W heads for several years on my 289 block with a 302 crank, .030 over, making it a 306. Mine were later (75?) with larger (1.85/1.55) valves. They were professionally pocket ported and gasket matched. They were also milled to give 9.5/1 CR in my engine. They worked great up to 5500 RPM and made lots of power. The only reason I changed them was to go to TFTW Al. heads. That did give me some extra power, but only about 30-35 HP. And that was with pocket porting/gasket match and 1.7 full roller rockers (old ones are only roller tip 1.6). I still have these 351W heads with the roller tip rockers if anyone is interested. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe