Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189685
03/02/12 03:34 PM
03/02/12 03:34 PM
|
Joined: Feb 2007
Posts: 5,080 organ
maximum entropy
master
|
master
Joined: Feb 2007
Posts: 5,080
organ
|
i always go with studs, and a bolt in girdle. if you have a dial bore gauge, and a straight edge, check the mains yourself. sometimes they need a to be line honed, sometimes not. always check.
for what is the good life if not doing things thoughtfully?
|
|
|
Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189691
03/03/12 12:20 AM
03/03/12 12:20 AM
|
Joined: Aug 2003
Posts: 43,185 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,185
Bend,OR USA
|
Quote:
Thanks people! Matt..I think you're right! Just MORE ADDED INSURANCE!..sure can't hurt! Cab...guesstimating to be around 610-620 horsepower..at the crank,of course! Any suggestions on what aftermarket caps to buy/use??? THANKS! Randy B.
I like and use to buy, when they where still avaliable, the Mopar brand Ductile iron main caps. Buy them if you can find a set If not my next choice would be steel main caps. They're are a lot of other racers and engine guys on this site that I respect that have used aluminum main caps with no problems I'm not one of them, yet, so I can't and won't recommend parts that I haven't used
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189695
03/03/12 09:20 AM
03/03/12 09:20 AM
|
Joined: Apr 2004
Posts: 12,339 somwhere
smokinwoody
I Live Here
|
I Live Here
Joined: Apr 2004
Posts: 12,339
somwhere
|
Randy, I have the stock mains with CRE's stud/girdle kit...we made 760hp on our first pull..the engine was installed in the car to break it in with a few runs and then it was re-tuned giving it another 100hp+... that engine has been sitting and will be going into my Dodge..I started thinking about the street activity and trips to the track...I am going to order the BCR "bottom" kit that comes with the full "wall to wall" main caps and that 1/2" thick girdle...thats a well planned out bottom end for our stock blocks with 2 main bolts/studs.. no matter what you do, a stud/girdle to me, is a must...
|
|
|
Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189703
03/03/12 07:23 PM
03/03/12 07:23 PM
|
Joined: Aug 2003
Posts: 43,185 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,185
Bend,OR USA
|
Quote:
Thanks for chiming in,Shawn! I'll run out to the pole barn in a few minutes and take some shots of ALL the cap mating surfaces. I can definately see evidence of "walking" on #2..#3..and #4 block/cap mating surfaces! So..you think just the stud kit alone will eliminate the "walking" issue? BTW...after talking to Randy Thursday...I will be going with Shawn at St. Clair Engine, to be doing my machine work!..he seems to be Mopar-Connected,for sure!
Get a real good flat mill file and remove any of the material that transferred betweent the caps and block mating surfaces, don't go hog wild, just smooth them up so they are flat
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189708
03/04/12 08:30 PM
03/04/12 08:30 PM
|
Joined: Aug 2003
Posts: 43,185 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,185
Bend,OR USA
|
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)
|
|
|
Re: ARP MAIN CAP STUD KIT???
[Re: Labratt]
#1189716
03/06/12 04:11 PM
03/06/12 04:11 PM
|
Joined: Mar 2009
Posts: 1,058 bigfork mn
dragram440
super stock
|
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
|
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
|
|
|
|
|