Truth be told...you can't compare the inline 6 to the v8...two entirely different engines that were made to serve two different purposes. If it wasn't for poor head design the inline engine would have been a v8 threat from the get go. Just lump porting the head and installing sbc valves is over a 30 hp bolt on. Add more lift and better pistons and yer over 100 hp add on. But like all inliner's should know...the 6 cylinder was made for low end power and the v8 for mid rang and top end. And unfortunately it cost a lot to hop up an inline but imop its worth the smile after.

Last edited by TJ's Chevy; 02/02/15 11:26 PM.

1966 C10 292/tko600 http://67-72chevytrucks.com/vboard/showthread.php?t=596643
1964 C20 292/sm420