Author: Cudadrag

Compression Ratio vs Cylinder pressure

I have been fine tuning the 451 for our Labor Day Muscle Car shootout drag race event at Brainerd Raceway. The motor used to have heavy ported iron 452 heads at about 80 cc giving a compression ratio of about 10.25:1 (depending on head gasket thickness used.) The cylinder pressure was about 150…

Allen Johnson looking good for tomorrow at Denver

I know it’s the Mopar Nationals, but the Dodges seem to come to life at Denver. Allen Johnson has had one badass Mopar all season. A little better driving luck (Like the virtual tie loss a couple weeks back) he will have a serious shot at a Championship. I would REALLY love seeing the Summit boys…

back fire thru carb on 383

I was over helping a friend with a 383 build. He has a new cam from mopar perf (Nothing big. I didnt see the exact numbers but just a replacement purple grind with hydrolic lifters.) and a new timing chain. The motor back fires thru the carb as if a stuck intake valve, but rockers move as if there…

All Mopar final in Vegas

Was nice to see. This puts John son in the hunt. And wow! that Vincent kid can drive.

Newest Mopar to Cory’s Stable

I bought a 1969 Roadrunner off e-bay. The car was towed from Alabama to Minnesota last week-end. It was owned by the same family since 1972. Before that I don’t know. The car looks to be a true survivor with original paint. The car is as base unit Roadrunner as you can get. 383 (lowest engine…

70-74 Cuda body parts.

Is there any difference in fenders and/or doors with the Grand Coupes? I’m guessing they are the same.

By the way looking for door and window H/W for 70 Cuda.

Piston oil ring gap.

I have just finish grinding the 2 upper rings to Ross piston gap recommendations. Now looking to begin with the oil ring installation. None of Ross or other ring gap recommendation sites say anything on gap for the oil rings. In the past I just made sure they didn’t touch, but after seeing the old…