Join Date: May 2002
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Re: Putting in a new head
How good of condition is the bottom end? if its good, meaning near factory compression, quite a bit. If not,
rings and bearings at a minimum are probably in order. Otherwise you will probably lose the bottom end compression.
To maximize HP on a reletivly stock motor...
Check the Piston to deck clearance. Deck the block if it has the room. This increases the compression ratio
much higher than cutting the head.
Dial in (degree) the cam properly to the crank. This is much more than lining up the timing belt marks.
Espesially important if you decked either the head or block.
Match the intake and exhaust ports to the manifolds.
Port the head. Don't polish the intake runners.
Shim the distributor gear to dist housing clearance to about .005 of an inch.
If you can, replace the carb with a Weber and have Sarge work his magic to the intake at least.
Those basics will bring an engine to its best potential given minimal mods, cams, headers, etc.