Re: 427?
 

A dime a dozen EH
Id like to see a 427 4 bolt standard block 321 block for a dime! https://www.yenko.net/ubbthreads/imag...mlins/wink.gif
PJ

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.

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

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 https://www.yenko.net/ubbthreads/imag...s/confused.gif 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 https://www.yenko.net/ubbthreads/imag...mlins/hmmm.gif it would be cool to have one..but I'm sure they will be pricey.

wilma

Re: 427?
 

I'm thinking for about 1/2 the price you could build a bbc to stomp the fire out of that GMMP crate engine...

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?

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!

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 https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Re: 427?
 

1 thing I forgot to ask, can a 427 run on 93 octane pump gas?

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. https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

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.... https://www.yenko.net/ubbthreads/imag...iggthumpup.gif