Originally Posted by Lha1988
I did read about a 22r modified with a 20r head[open chamber] to produce about 1100 Hp! The 20r head had to be heavily modified to fit. bearing shells come in an amazing variety of sizes and widths and a fairly good automotive machine shop[dying breed,only one near my house is 100m round trip]can fit bearings to your head. If warped on the block side,the absolute minimum should be shaved off. In the event of over decking,there are copper shims to use with the gasket. I had to put one on my '88 P/U,which measured 185psi after a head repair.


Wow! No problem there! grin

Thanks.
Steve

'80 4X4 Longbed