another j head question

Here are the final specs and results.........I think I like it.




enter Bore/Stroke Designation Type
1 = Inches 2 = Millimeters 1

Enter Cylinder Bore Size 4.06

Enter Piston Stroke Length 3.58

Enter Head Gasket Bore Diameter 4.06

Enter Compressed Head Gasket Thickness .025

Enter Combustion Chamber Volume In CCs 48

Enter Piston Dome Volume In CCs Negative For Dished Pistons (Use '-') -9.8

Enter Piston Deck Clearance Negative If ABOVE Deck (Use '-') : .1




Calculated Engine Compression Ratio 10.007:1

Total Displacement Volume cc 84.318


I had Already ordered the mopar thin gaskets and also had a set of economy felpro gaskets sitting around. A buddy talked me into using the thin ones:)

New mopar performance head bolts also used. Did not have any issues with bolt length. I did tap and blow out the holes first.

I put one head on and snugged it down with no gaskets and set up the number one cylinder with the adjustable rockers. Pushrods will be almost perfect, maybe one thread too much showing on the bottom of the adjuster with the gaskets installed. I hand cranked to check for any binding and did not get any clearance issues. Not sure what my piston to valve clearance is during the overlap but it's not hitting. Disassembled and put it together for good this time.

I will have to wait till monday to get my intake shaved. It needs quite a bit of removal. I think that with the recomendations from moper and BJR I will have be o.k.

The machine shop also gave me installed height, spring seat pressure @ 0 and 500 lift, seat height, retainer to valve guide clearance at 500 lift. I really like the service from these guys.

Can't wait to see how it runs!!!