Hemi #s

[cheaterslick]

Does anyone know where I can find out the standard main & rod journal sizes for a Chrysler 331? Were should I look for cracks on the block, main webs, etc? Anything else to watch for?
Thanks

[Mel]

Standard for a 331 Hemi would be
main 2.5000
rod 2.250

Hot Heads (http://www.hothemiheads.com/index.htm) has more info if you need it.

~Melissa

[cheaterslick]

Perfect - thanks

[Machinos]

Just copy/pasted this stuff out of my spec sheets... it's for '55 331s but I'm pretty sure it applies to all the 331's

Piston Fitting;
Shim to Use: .002"
Pounds Pull on Scale: 5 to 12 :
Ring End Gap
Compression Ring: .010"
Oil Ring: .010"
Wrist Pin Diameter: .9842"
Rod Bearings:
Shaft Diameter: 2.249"-2.250"
Bearing Clearance: .0005"-.0015"
Rod End Play: .006"-.014"
Rod Bolt Torque: 45-50 Ft. Lbs.
Main Bearings:
Shaft Diameter: 2.499"-2.500"
Bearing Clearance: .0005"-.0015"
Thrust: Center Bearing
Crankshaft End Play: .003"-.007"
Main Bolt Torque: 80-85 Ft. Lbs.

[studeboy]

you could also look at classic Hemi (http://www.classichemi.com/331hemi.shtml) Everything you are looking for should be here.

You can use 400-455 Pontiac rods (big ends are same size have to resize wristpin.) Have been told sbc pistons will work but not sure which as wristpin height varies.

On 2 of the blocks I have the lifters are frozen in the bores. Saw a couple on Ebay last night same way.

Email or pm me if you want to talk some more. I'm not an expert but I have found some interesting stuff on the net.

Eric

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49 Studebaker P/U