SBC Eliminator - 23° Cylinder Head Our ELIMINATOR line of SBC heads feature 100% 5-AXIS CNC ported intake, exhaust and combustion chambers; available in street and competition version. The 180cc, 190cc and 195cc models are CARB Certified EO #D-250-2 for vehicles model year 1994 and older.
That said, you began with not looking for A460 head performance, which is good. This is a stock-head replacement, not a full-on race head. If you want to use them on a racecar that is fine, but you can only get so much power out of them. You have to be realistic with the budget too. If you want a multi-thousand dollar race head, buy one. SIFCO Industries is a world-wide provider of highly engineered forged components to the Aerospace, Energy and Defense markets. We supply flight-critical forged components and machined assemblies to all of the leading aircraft and engine manufacturers in the world.
The slightly less pathetic LO5 350 TBI motor (trucks) used the #193 heads you have. They had slightly larger 64cc chambers and slightly larger 1.94/1.50 valves but weren't really a whole lot better than the 305 heads, above. Compression was 9.3:1 with -12cc dished pistons and a fairly thin head gasket. Jun 11, 2014 · According to our flow bench, these iron heads flowed 340 cfm, or enough to support more than 680 hp (easily exceeding our goal of 600 hp). At $789.50 at summitracing.com , they’re quite the bargain.