Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#21
12-23-2007, 01:45 AM
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Re: 427?
[ QUOTE ]
I took a 454 2 bolt main block, put a 6223/3.76 steel crank with 7/16 dimple rods and 427 Keith Black hypereutectic pistons. Heads were 115cc 6272990 rectangular port with 3933163 intake and 4053/780 vacuum secondary Holley. Compression was 9.975 to 1. Ran on 93 octane and was about 520 HP...... Muncie M20 with 3:73 12 bolt. Tons of fun in my 1968 Nova.  The best part about it was it would rev as fast as a small block which is an advantage over a 454 in my opinion. Plus I love rpm's....  [/ QUOTE ] Did you have to use a block girdle or are they splayed mains? 
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