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Old 08-18-2002, 22:29   #1 (permalink)
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Question 377 Strocker

Im thinking of rebuilding a cleveland I have, before I put it in my car. I was talking to a mate, who said that they can be strocked to 377 using a 351 crank and chevy rods? Is this true? How expensive would it be? Anybody know? Thanks in advance

I had a quick look at ACL's site and they do make pistons for clevlands to fit chevy rods.
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Old 08-18-2002, 23:51   #2 (permalink)
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378ci stroker kits are pretty popular for clevelands - check out www.comeracing.com under engine packages- they're pretty expensive but will give you a good idea of what can be done.
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Old 08-19-2002, 02:51   #3 (permalink)
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If you use the same 351 crank the capacity will still be the same 351. You need to get a crank that has a longer throw. The longer/shorter rod will change the compression. Think about it!!!
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Old 08-19-2002, 03:32   #4 (permalink)
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The 351 crank is offset ground to a stroke of 3.7"...I looked into this a while ago and found it to be a little more expensive than i wanted to spend..I went with the longer 6.030" (compared to 5.78) 302 clev rods in a 351 with the correct pistons.The longer rods vary piston speed somewhat a similar principal to a stroker,though there are varying opinions on the long rod theory..I've heard nothing but good reports on the 302 rod combo..Myself,i'm very pleased with the results..
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Old 08-19-2002, 04:20   #5 (permalink)
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Thanks for the replies guys. Yeah, I thought the crank would have to be ground but didnt realise it would be so expensive. Ill probably stick with the 351 crank with the 302 rods, or maybe ill just stick with the stock bottem 302 bottem end. With a cam and heads worked. It depends how patient I can be I guess.
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Old 08-19-2002, 04:23   #6 (permalink)
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Let me get this right the big ends are offset ground from 3.5" to 3.7".
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Old 08-19-2002, 04:49   #7 (permalink)
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Go for the 351 crank with the 302 rods I had that setup with my XC, supposedly has less wear on the pistons, rings and bores although it may just be me but it revs a little different as well to your usual 351 Clevo.
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Old 08-19-2002, 06:05   #8 (permalink)
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Yep the longer rods mean the piston stays on tdc longer same bdc.Supposed to be more torque. The Ford team guys used longer rods in the H.O days. Why they made more power compared to private teams..
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Old 08-20-2002, 02:36   #9 (permalink)
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BLOWN EF,the 3.5 - 3.7 is the total stroke.The big end journal is reduced from 2.311" to 2.100".This size is not just a reduction but is offset ground in a way that it increases stroke..
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Old 08-20-2002, 04:55   #10 (permalink)
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check out prostroke, these guys will give you the run down on bore/stroke ratios & all the other stuff you need to know! cheap to.
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