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bronze or chromoly fuel pump pushrod
#1532391
11/11/13 10:33 PM
11/11/13 10:33 PM
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Joined: Jun 2007
Posts: 1,183
clarks summit pa
73cuda340
OP
super stock
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OP
super stock
Joined: Jun 2007
Posts: 1,183
clarks summit pa
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I have a 528 hemi that I'm buying a fuel pump pushrod for. Should I go bronze or chromoly? I have a solid flat tappet cam in it and Im wondering what would be better.
1973 Cuda 528 all aluminum Hemi, 4 speed, 3.23 Sure-Grip,
(JA5) Silver Frost Metallic
1973 Challenger Rallye 340
1985 W150 Power Ram prospector
1986 Camaro IROC-Z 305 tpi
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Re: bronze or chromoly fuel pump pushrod
[Re: 73cuda340]
#1532392
11/11/13 11:06 PM
11/11/13 11:06 PM
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Joined: Jul 2005
Posts: 1,954
Blairsden, CA
Triggerfish
top fuel
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top fuel
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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Quote:
I have a 528 hemi that I'm buying a fuel pump pushrod for. Should I go bronze or chromoly? I have a solid flat tappet cam in it and Im wondering what would be better.
I hope someone who knows about this will chime in, but I was told not to put a repop pushrod in my hemi (solid flat tappet cam), since the metal is softer than the oem rods. Not long after I put the new solid Ultradyne cam in the Hemi, the car vaporlocked a lot. Turns out the pushrod had over 1/4" of metal dished out on the cam end. Then recently, I was having vapor lock issues on my 71 Power Wagon's 383 & on checking the pushrod, it also was short. Put electric pumps on both & issue solved. A knowledgeable Mopar racer & restoration shop owner told me the repops are actually a little shorter than the oem rods.
Could be that was the issue on both. I'd make sure you measure either one you buy & compare it with an oem rod to be sure. Maybe someone can shed some light on this.
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