Small Blocks

DionR said

Interesting that the SB2 NASCAR engine did this to the intake ports but left the exhaust ports side by side in the center. That would lead me to believe that a symmetrical intake port had more benefit than a symmetrical exhaust port.

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Back before Allen Johnson stopped racing prostock, he tested both heads on his genIII race Hemi. He found about 1.5 hp difference favoring the IEIEIEIE head so the argument for hot spot of 2 exhaust valves together is debatable, but unlike a hemi, the small block is small and if you went to a canted valve head, it may make a difference in ports missing head bolt and pushrod holes. Its a debatable topic and who knows why nascar does the things they do. For instance car of tomorrow. I don’t follow nascar, no dodges, I’m out. No stock bodies, I’m out.

The ford canted small block head makes stupid high horsepower.