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BBC H beam rods, dumb question
#931731
02/18/11 01:52 PM
02/18/11 01:52 PM
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Joined: Jan 2003
Posts: 17,879 S.E. Michigan
ZIPPY
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OP
I Live Here
Joined: Jan 2003
Posts: 17,879
S.E. Michigan
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Stupid question of the day:
On your typical Scat, Manley, Eagle, K1, Compstar etc aftermarket .990 pin H beam rod:
Do the pin bushings appear to have enough material to bore out to 1.030 or 1.094?
------------------------------- Reason for asking:
-The pin bushings in my Scat and Manley 1.094 rods appear paper thin....I have always suspected they only had one little end bore size but have never known for sure -There are a few good deals on 1.030/1.094 pistons at the moment, and the larger pin size has never really been a problem/does not really bother me -All the piston deals are for 4.150 stroke and up, and I'd rather not grind any more than I have to (would rather use 2.200 big end, but rods with that big end size never come with mopar wrist pin dimensions)
If I have to buy a set of rods to measure, ok, but I thought maybe somebody here would know or would have both types sitting around to look at?
Rich H.
Esse Quam Videri
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Re: BBC H beam rods, dumb question
[Re: ZIPPY]
#931732
02/18/11 02:46 PM
02/18/11 02:46 PM
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Joined: Jul 2010
Posts: 2,091 Delray beach, Florida
Performance Only
top fuel
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top fuel
Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
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they make different sized bushings for the mopar pins. i personally wouldn't feel comfortable taking a .990 to 1.094. i don't think there'd be anything left of the bushing, and if there was it'd be so thin i wouldn't trust it. you "might" be able to go to 1.03
machine shop owner and engine builder
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Re: BBC H beam rods, dumb question
[Re: Performance Only]
#931733
02/18/11 11:47 PM
02/18/11 11:47 PM
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Joined: Jan 2003
Posts: 17,879 S.E. Michigan
ZIPPY
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Thanks Dan.
I guess if there is enough material in the little end, the steel could be bored first and then bushings replaced with a larger OD.
Going to make some phone calls but thought I'd ask here first.
1.030 was the target. 1.094 more just for my information or possible future use.
Rich H.
Esse Quam Videri
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Re: BBC H beam rods, dumb question
[Re: astjp2]
#931735
02/19/11 12:13 PM
02/19/11 12:13 PM
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Joined: Jan 2003
Posts: 17,879 S.E. Michigan
ZIPPY
OP
I Live Here
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OP
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Posts: 17,879
S.E. Michigan
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That's not a horribly bad price, thanks for the info.
Good chance of being forced into external pickup (for reliability's sake/avoiding high rpm pressure drop rather than clearance) with that much stroke anyway, maybe I shouldn't worry about it and should just use mopar dimension rods, go external and be done with it.
Rich H.
Esse Quam Videri
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