Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#12
12-18-2007, 10:15 PM
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Re: 427?
Are you wanting a "clone" of a specific 427 (L72, L88, L71, etc)...or just wanting the feel of a 427? If it's the latter, just find a 454 block out of about anything and throw a 3.76 crank in it and call it done...then bolt on the appropriate exterior goodies.
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#13
12-19-2007, 10:19 PM
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Re: 427?
I found these 2 crate motors, probably couldn't afford the first one but the 2nd looks interesting. I guess i'm looking to clone a 427 that would have come either in a COPO or a Yenko or a Motion car, the power of the 427 is a big plus !!!
http://www.sdparts.com/catalog/crate...ryEdition.aspx http://www.sdparts.com/product/19166...eAssembly.aspx
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#14
12-20-2007, 01:30 AM
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Re: 427?
As for the cast iron motor..you can build your own for less...430 hp seems a little mild given the modern heads and roller camshaft
 they are probably using the same heads and cam from the ZZ454 engine....as for the aluminum job...why can't they say what the horsepower is exactly...doesn't GM have a dyno  it would be cool to have one..but I'm sure they will be pricey.wilma
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02 Berger 380hp #95 Lots of L78 Novas Join National Nostalgic Nova! 70 Orange Cooler 69 Camaro
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#16
12-21-2007, 06:15 AM
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Re: 427?
Well after doing some more 427 research it looks to me like an L71, L88, L89 or a ZLX might be fun motors. I have a cowl hood, would a TriPower fit underneith it?
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#17
12-21-2007, 06:26 AM
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Re: 427?
You should get a hold of Rick Bawcom...he's in Texas. He's pretty familiar with some high horsepower big blocks...
HIs name on this site is TXSS Click here for his info!
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Bruce Choose Life-Donate!
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#18
12-21-2007, 05:00 PM
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Re: 427?
[ QUOTE ]
I'm thinking for about 1/2 the price you could build a bbc to stomp the fire out of that GMMP crate engine... [/ QUOTE ] You got it Rob...get a good use 454 block and just build a 427. I have had some experience with the GM crate engines...you can do much better yourself for a lot less. wilma 
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02 Berger 380hp #95 Lots of L78 Novas Join National Nostalgic Nova! 70 Orange Cooler 69 Camaro
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#20
12-22-2007, 11:29 PM
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Re: 427?
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.... 
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 1969 SS396 Post Sedan Delivered to Van-T Topeka KS MCACN Day2 Concourse Gold Award 1965 VW El Lobo Dune Buggy built in the mid 70’s for the Iowa Shriners 1968 Schwinn Orange Krate 1969 Schwinn Pea Picker 1968 Schwinn 5-Speed 1970 Schwinn 3-Speed Deluxe 1972 Schwinn 10-Speed Continental 1973 Schwinn 5-Speed Suburban All Original Paint Bikes
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