Doublelead
FTE Legend
Joined: Jun 2004
Posts: 31,848
Likes: 2,365
From: Upstate NY
There are some guys around that have put 460's and 429's in their fridges. I have a 429 setting in the barn that I have been thinking about but it is a '72 and that was not a great year for 385 series.
Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
You are correct in 72 compression ratios across the whole engine line up dropped, the 385 compression ratio was 8.5:1 across the line The only exception to this was the 429 P.I engines that sported the D20E heads. These heads have pushrod guide plates and screw-in rocker studs with a chamber size of about 92 cc's with a compression ratio of about 9:1. The port sizes of the D20E heads are slotted in between the CJ and standard passenger car heads.
Laughing Gas
Joined: Aug 2010
Posts: 1,049
Likes: 230
From: Amarillo, TX
My 400 fits fine with the CPP steering box. Only clearance issue would be the exhaust manifold. I don't know about the big blocks, but my factory manifold dumps kind of in the center, not the back, so I just ran the exhaust under the oil pan, then turned it back to run next to the passenger side pipe. Might have to look at shorty headers to find a set that dumps more in the center of the block.
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lectricman
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
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Apr 26, 2006 12:00 PM
