440-1 heaads with Jesel rockers ,pushrod rubbng problems
#1994455
01/19/16 11:03 PM
01/19/16 11:03 PM
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Joined: Aug 2003
Posts: 43,274 Bend,OR USA
Cab_Burge
OP
I Win
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OP
I Win
Joined: Aug 2003
Posts: 43,274
Bend,OR USA
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I'm mocking up a 400 block bracket motor with a set of 440-1 heads I bought off of a member on here in the past,I'm having pushrod rubbing problems on two intake port runners(#1 and #7) on the drivers side using 7/16 O.D. pushrods with the Jesel 1.55 ratio paired rocker arms. I did swap those two pushrods to a smaller 3/8 diameter and they didn't rub when on the heel of the cam but they did hit at mid to max lift I haven't mock up the other side up yet so I don't know if they will hit on that side also, my question is, is this common All input apreciated
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 440-1 heaads with Jesel rockers ,pushrod rubbng problems
[Re: gregsdart]
#1994808
01/20/16 12:14 PM
01/20/16 12:14 PM
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Joined: Mar 2012
Posts: 220
Jerry Kathe
enthusiast
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enthusiast
Joined: Mar 2012
Posts: 220
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Jesel 1.55 rockers here, same trouble with clearance. I run offset lifters already, still needed more roofom for 7/16 or bigger pushrods. Low deck?
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Re: 440-1 heaads with Jesel rockers ,pushrod rubbng problems
[Re: Jerry Kathe]
#1994827
01/20/16 12:46 PM
01/20/16 12:46 PM
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Joined: Jan 2003
Posts: 10,015 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,015
Frostbitefalls MN (Rocky&Bullw...
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Jesel 1.55 rockers here, same trouble with clearance. I run offset lifters already, still needed more roofom for 7/16 or bigger pushrods. Low deck? Megablock
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 440-1 heaads with Jesel rockers ,pushrod rubbng problems
[Re: Jerry Kathe]
#1994937
01/20/16 03:30 PM
01/20/16 03:30 PM
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Joined: Aug 2003
Posts: 43,274 Bend,OR USA
Cab_Burge
OP
I Win
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OP
I Win
Joined: Aug 2003
Posts: 43,274
Bend,OR USA
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Mock it up with some offset lifters. Should cure that. I'm using a the Comp Cams # 892 .180 offset lifters in this build It is a low deck 400 block.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 440-1 heaads with Jesel rockers ,pushrod rubbng problems
[Re: Cab_Burge]
#1994950
01/20/16 03:58 PM
01/20/16 03:58 PM
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Joined: Feb 2012
Posts: 368 michigan
turbo toad
enthusiast
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enthusiast
Joined: Feb 2012
Posts: 368
michigan
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Please dont take this the wrong way but were the lifters put it the correct bore intake in intake bore exhaust in the exhaust bore Just throwing it out there
Check out my build on Facebook Ttoad Hurley its updated regularly
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Re: 440-1 heaads with Jesel rockers ,pushrod rubbng problems
[Re: Cab_Burge]
#1995029
01/20/16 05:22 PM
01/20/16 05:22 PM
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Joined: Mar 2012
Posts: 220
Jerry Kathe
enthusiast
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enthusiast
Joined: Mar 2012
Posts: 220
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Mock it up with some offset lifters. Should cure that. I'm using a the Comp Cams # 892 .180 offset lifters in this build It is a low deck 400 block. This is where I would have to bow out. No experience with a low deck (the worst of pushrod angle) and 7/16 diameter PR's and the indy head. If you have the wall thickness....grab the die grinder - lol
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