The difference that good cylinder heads will make....

[MAStuart]

So the RHS heads had 2.02 /1.65 . What size runners.

My other question was about the boss style engine. What is your guess as to the power if nothing else was changer but the heads and intake to AFR 185 and victor jr. On paper the Chi 185 and AFR 185 flow about the same numbers.

Mark

[blykins]

On paper, a lot of stuff works. I can attest that many heads don't flow what they are advertised to flow. The larger CHI heads do ok on the bench, but the 185's back up at around .600" lift. These had been ported, as I mentioned in the initial post. Also, flow is not everything....velocity is as important, or more so.

You are looking at around 450 hp with the AFR's and a Victor Jr.

[MAStuart]

Thank You for your reply. And the RHS heads had how many cc runners.

[blykins]

215........

[MAStuart]

Thanks! ahah They sound big and this is where the port velocity show its strength in the CHI 185.


I want to call sometime . When would be a good time?

Mark

[blykins]

Nah, not really big.

The RHS heads do ok but just aren't in the same league as the others. A canted valve head will usually outperform an inline head as well. However, as I stated, I've tried 170cc Twisted Wedge heads, 185cc AFR's, Victor Jr's, etc., and they are all usually right around the same spot.