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what size rods do i need??please help

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Old 02-15-2005, 04:51 PM
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Default what size rods do i need??please help

i am buying rods for my engine. which size do i get/need? are the eagle 6.125" rods better than the 6.1". i was thinking of getting the 6.1" but i see that everyone uses the 6.125", why? wouldnt the 6.1 have less rod angle and put less stress on the piston? any info would be appreciated.
Old 02-15-2005, 04:56 PM
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Are you building a stroker?
Old 02-15-2005, 05:00 PM
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yes..408ci
Old 02-15-2005, 05:04 PM
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jrp
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ya, whats the bore x stroke your working with and have you chosen pistons yet?

on a 346 it usually goes

6.098 - 6.1 rods with pistons w/ a ~1.340 CH (stock)
6.125 rods with pistons w/ a ~1.315 CH

generally you want to keep things within the deck height.
Old 02-15-2005, 05:05 PM
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.030 over 6.0 with a 4 inch stroke use 6.125 rods
Old 02-15-2005, 05:06 PM
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no pistons yet, bore 4.040x stroke 4.00..which rods work best?...
Old 02-15-2005, 05:16 PM
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do they make off the shelf stock length rods for a 4" stroke? all i've seen are pistons setup for 6.125 rods w/ a ~1.105 CH
Old 02-15-2005, 05:19 PM
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Originally Posted by jrp
do they make off the shelf stock length rods for a 4" stroke? all i've seen are pistons setup for 6.125 rods w/ a ~1.105 CH
F.I.I.K..
Old 02-15-2005, 05:23 PM
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lol, i hope you arent putting this motor together.
Old 02-15-2005, 05:24 PM
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Originally Posted by jrp
lol, i hope you arent putting this motor together.
actually a friend of mine is, i am just gathering the parts. and yes he is well qualified since he works at a very reputable speed shop in houston. i was gonna give it a shot..i had my glue gun and duct tape ready in case i broke anything, but after he offered, i couldnt turn him down

Last edited by 1QWIKZ; 02-15-2005 at 05:32 PM.




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