Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

BBC 650hp combo ?

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Old May 31, 2007 | 12:05 AM
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Default BBC 650hp combo ?

I'll start my BBC build soon and I am looking for ideas. Can someone give me a good proven budget big block combo that will get at least 650 hp.
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Old May 31, 2007 | 12:16 PM
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Look at the new Chevy Hi Performance mag., they have a 496 BBC making 622 HP in it. I went to their web site but they still have last month's info on it.
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Old May 31, 2007 | 12:24 PM
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Look in Engine Masters at their Big Block Shootout. They made a 454 with basically off the shelf parts and Crane cam and made around 600-650. They used OEM crank and rods IIRC.

http://www.popularhotrodding.com/eng...em_bbshootout/
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Old May 31, 2007 | 01:44 PM
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Are you looking for a race only setup?

My little 468 works good. It's just a 2 bolt main with a mild cam and runs well down in the 9's (granted my car works good). It's not too complicated, the heads/intake are ported on but not matched. Only exotic things really is that it's on alcohol and has a vacuum pump.
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Old May 31, 2007 | 05:02 PM
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wanna get wild maybe a 540cid should do it!!!!!!!!
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Old May 31, 2007 | 05:03 PM
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how about a power adder?
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Old May 31, 2007 | 06:39 PM
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Thanks for the input guys really appreciate it. what I'm looking for is a race motor but not a wild one I want something I can drive for little time to get me to our local weekend gathering which is 5 minuets from home
What I'm thinking about now is 496 stroker with top end kit and solid lifter cam, with the possibility of using nitrous
Any ideas ?
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Old May 31, 2007 | 06:50 PM
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do you want it to fit under the hood?
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Old May 31, 2007 | 10:46 PM
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a fogger system in a 496 would make way more than 650 that would be only on motor
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Old Jun 1, 2007 | 03:49 AM
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Originally Posted by carado1984
do you want it to fit under the hood?
don't worry I already have a 4.5'' cowl hood
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Old Jun 1, 2007 | 03:57 AM
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Originally Posted by gangbang malloy
a fogger system in a 496 would make way more than 650 that would be only on motor
So I don't need it?

I'll see If my budget allow me to install it I'll for just in case I need the extra power
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Old Jun 1, 2007 | 10:32 AM
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Do you have a motor already to rebuild or is this all new?
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Old Jun 1, 2007 | 10:48 AM
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no I don't have the motor yet
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Old Jun 1, 2007 | 11:00 AM
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i didnt look close enough if the picture.. so what block are you planning on starting with a 454 out of a truck?
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Old Jun 1, 2007 | 11:23 AM
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yes that's my plan
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Old Jun 1, 2007 | 02:30 PM
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with a high compression ratio and good flowing heads u will make 650 easy, now with a fogger system u can make 1000hp easy depends what route u wanna take
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Old Jun 1, 2007 | 02:37 PM
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What's your idea of budget? Right now my short block is about $4K:

502 block - 750
Eagle 4.25 Crank - 500
Crower 6.385 Rods - 290
Ross Pistons/Rings - 1000 (no hook - up )
Bret Solid Roller 4/7 Swap - 490
Bearings - 150 approx.
Assembly & Balance - 800
Timing Set - 65

If you stick with a OEM RA and off the shelf cam you can save a lot of coin cause you can pick up a complete junkyard motor for around $400 or less.
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Old Jun 1, 2007 | 02:45 PM
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A 496 setup wouldn't be bad. Ohio Crankshaft has a nice deal on a 496 rotating assembly, if/when I build the spare block I have it'll probably be a 496 (I'm posting this because I don't think any sponsors offer the kit).

My dad has a 540 and I've considered one for my car as well but the motor in it just works so well.

For $300 this winter I'll have a cam built specific to my car. I know a guy that went from high 5.80's in the 1/8 to low 5.60's just by having a cam built to the car. I also know someone with a 3300 pound 66 Chevelle that had a 502 that wasn't too outrageous and had the cam built to the car and it ran 6.1X's on the back bumper. Seems like money well spent to me.
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Old Jun 1, 2007 | 03:28 PM
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I figured I would just throw this out there, but how adaptable are the older Caddy 502 motors? Are they a different beast all together?
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Old Jun 1, 2007 | 04:50 PM
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I don't know about the caddy 502 and the possibility of me getting one is zero because they don't exist were I live.
for the budget thing honestly I didn't plan my budget yet I just want to see first how others did with their motors so I can get a general idea then I'll decide my plan
I can get a complete BBC even for free here because they are every where and some people can't stand their fuel consumption so they get rid of them
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