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post #1 of 5 (permalink) Old 06-05-03, 09:09 PM Thread Starter
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Question 514CI Big block

Whats the best option for stroking a BB out to 500+ cubes like the crate motor, i've seen articles on stroking and boring out to 540 ci using the 6cyl truck rods, but dont want to bore it out to 4.5 in. I think .030" over will give us 514ci.
Any idea on which head / cam combo to get 650hp / 650ft-lb torque at 5,000 to 6,000 rpm ?
Will need good torque down low to get a heavy beast (4,400lb car) off the line and be streetable.
Any advice appreciated.


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post #2 of 5 (permalink) Old 06-06-03, 02:29 AM
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sounds like a billet crank or such is the go. I don't know how much out they can go out but I would expect about .030 would be as far as you would want to go on a stock block.
Headsand Cam, I would be looking at SVO stuff but then again I really haven't done much study on the 385 series motors so there may be much better stuff out there
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post #3 of 5 (permalink) Old 06-08-03, 12:57 AM
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http://www.compcams.com/information/...SR0702-001.asp

Have a read of that article..
You need a scat cast steel crank with either 4.15,4.3 or 4.5" stroke.With a .030" bore they make 502,520 +545 cubes..It is not uncommon to bore a 460 block to .080" safely if the block is checked.
Eagle also make a cast steel crank but only in 4.140" stroke..
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post #4 of 5 (permalink) Old 08-13-05, 01:30 AM
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Re: 514CI Big block

Quote:
Originally Posted by gregaust
http://www.compcams.com/information/...SR0702-001.asp

Have a read of that article..
You need a scat cast steel crank with either 4.15,4.3 or 4.5" stroke.With a .030" bore they make 502,520 +545 cubes..It is not uncommon to bore a 460 block to .080" safely if the block is checked.
Eagle also make a cast steel crank but only in 4.140" stroke..
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post #5 of 5 (permalink) Old 09-04-05, 03:34 AM
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Re: 514CI Big block

Quote:
Originally Posted by ricthewheelie
Whats the best option for stroking a BB out to 500+ cubes like the crate motor, i've seen articles on stroking and boring out to 540 ci using the 6cyl truck rods, but dont want to bore it out to 4.5 in. I think .030" over will give us 514ci.
Any idea on which head / cam combo to get 650hp / 650ft-lb torque at 5,000 to 6,000 rpm ?
Will need good torque down low to get a heavy beast (4,400lb car) off the line and be streetable.
Any advice appreciated.
any updates on your engine combo.
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