Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189708
03/04/12 08:30 PM
03/04/12 08:30 PM
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Joined: Aug 2003
Posts: 43,744 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,744
Bend,OR USA
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i put ductile iron main caps and ARP studs in my 512 motor with the iron heads, the first inspection after dyno testing and some street and strip driving, not a lot, I found similar results I file them flat and put it back together, I swapped heads also and ran it the next year a lt more at the track and on the street. I looked at it agian the next winter and had a little main cap wlaked, not near as much as the fsrt time. I swapped the 4.250 stroke crank out for the 4.300 stroke crank to increase the compression from 9.25 to 1 to 10.29 to 1 by moving the pistons up from -.025 to zero deck I had all the main caps off that motor at the begiining of last year and I didn't need to file the caps anymore, I leak it down last month and put it on the dyno, it made 728 HP on pump gas at 4300 ft. elevation I put it back in the car for another year of playing Same main bearings for five years now
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189716
03/06/12 04:11 PM
03/06/12 04:11 PM
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Joined: Mar 2009
Posts: 1,058 bigfork mn
dragram440
super stock
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super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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I also have the 440 source billet steel caps. They did take some machine work to make them fit. Seem to be working.
67' charger 499 RB
10.57 at 127
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