Reply to "Should I build up the original engine in my GT5S or keep it stock"

rockyMember

Yes, my “built” motor is also a Cleveland. I got advice from GeorgeP on a cam, and used it in my build. I’ve got good vacuum, good idle, and measured 425 HP on the engine dyno with my existing headers/mufflers. My builder thought there were at least 50 hp more with a different exhaust (think 360s).

I’m only bored out .040 (after having sonic tested), not stroked. I’m running 4V cast iron heads, ported.

I think you can get more, but mine is healthy, powerful, reliable and fun.

11/10/226:28 AM

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