Posted By: '72CudaRacer
Milling block and/or cyl head - 11/15/09 11:00 PM
How much can a stock block be decked? How about 452 cast iron heads?
If either of these are cut, how much does the intake side of the head need to be cut? Anything else need to be machined?
Thanks, Brian
Posted By: mr_340
Re: Milling block and/or cyl head - 11/16/09 12:01 AM
I have two old SS Street Hemi blocks that have been decked around .100"-.120". I wouldn't recommend doing that. On a stock block and heads, I've heard .060" is around the maximum recommended. I prefer to take as little off as necessary. It sounds like you need different pistons to me.
Posted By: Jimi_Vignogna
Re: Milling block and/or cyl head - 11/16/09 01:18 AM
i have taken as much as .250 off a stock deck on a block, 452 heads we usually take .110 off the deck side to get them around 63 cc's and .125 plus off the intake side never have any problems.
Posted By: Dodgem
Re: Milling block and/or cyl head - 11/16/09 04:13 PM
A friend had .160 taken off a 440 to get the 8 to 1 pistons up!!! LOL!!
I have milled a set of 906 .110 also worked good for years till one cracked back in the intake bowel where it was ported a little thin!!
aluminum is the only way to go now!!!
Posted By: RUNCHARGER
Re: Milling block and/or cyl head - 11/16/09 06:31 PM
One of my smog 440's was .2 in the hole. If I'd been smart I would have used those pistons with a 4.15 crank. Almost as cheap and definetly more effective than decking and then milling 4 head surfaces.
Sheldon