How much to take off the head for raising comp

[Gsi-mark]

As above 20-30-40 thou which is best

 

[Arnold]

Well many will say that you shouldn't just take any off the stock head as it will raise compression then u run greater risk of detonation. Best thing to do is also rechamber the head the n take some off. But u have to be careful on how much u take off because the higher the compression the high the octane u will need yo run. Idk the numbers so maybe some one else can chime in with that info

 

[best]

That is pretty much it Arnold.
0.020" probably won't hurt, and it will liven up, but a rechamber is a better idea if you really want to make some power.

 

[sicivicdude]

As long as you are running a stock stroke blaster with a stock head gasket and stock base gasket, you can remove the "step" inside the head completely. It won't put out power like a rechambered head (the overall design still leaves something to be desired) but it will raise the compression some and liven it up.

Plus, you can "shave" it for free with a large belt sander (or a lot of hand filing) and something smooth enough to lap it on (thick piece of glass for instance).

 

[Triplecrown421]

with the stock head i wouldnt shave it past 0.030 you sould also think about running 91 or so octain.

i strongly recommend a re-chambered head, you could shave the hell outa it then. stock and a well rechamberes head are a night an day difference.