compression ratio
Posting Guru
Joined: Aug 2000
Posts: 2,416
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From: PacNW
I might if they existed but 1971 was the last year of the 429 CJ/SCJ. The biggest difference between the 429 ThunderJet and the CJ was the heads. D0VE heads were what came on the base 429 or ThunderJet engines. The casting codes for the CJ heads were D0OE-R which were a completely different casting than the D0VE.
The bottom end of the CJ/SCJ wasn't much different than the ThunderJet. They had better rods and the SCJ had forged pistons & 4 bolt mains. A CJ motor without the CJ heads isn't all that special an engine and I'd be pretty skeptical about whether or not it's even a CJ block especially since someone thinks it's a 1972.
The bottom end of the CJ/SCJ wasn't much different than the ThunderJet. They had better rods and the SCJ had forged pistons & 4 bolt mains. A CJ motor without the CJ heads isn't all that special an engine and I'd be pretty skeptical about whether or not it's even a CJ block especially since someone thinks it's a 1972.
