ok so im just doing some thinking and i wanna know if this is an option i know people use 305 heads on a 350 and im sure it can go the other way too. My question is can i get a set of 350 heads off lets say a 350 tpi or a corvette or something like that or ive heard vortec heads from im assuming a truck and make them bolt onto my tpi setup? This isnt something im doing like tomorrow it was just a thought and ive heard rumors you could do it as long as the valve isnt bigger than 1.94 so any info would be great.

 

You can run a 1.94" valve with some clearancing.

But 350 heads are typically 64cc vs the 58cc of a 305 head. You can change the pistons to account for this difference but if you don't you'll lose compression.

Good for boost though.

Flow wise? L98 heads do not really outflow LB9 heads by all that much. Don't drop "350" heads aka 64cc chamber heads on a stock 305.