Author Topic: push rod lengths  (Read 692 times)

Offline cuda lover

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push rod lengths
« on: March 11, 2017 - 07:17:38 PM »
Hello,

Im rebuilding a 1973 340 engine. I have bought :

COMP Cams Pro Magnum Shaft Mount Roller Rocker Arms CCA-1622-16
COMP Cams High Energy Hydraulic Lifters CCA-822-16
COMP Cams Magnum Pushrods CCA-7592-16

the engine did have a high performance cam (I can get numbers if that helps determine rod length

The rods are about 7.5 inches

But installed some of the rods do not reach the rocker, or look far away, I mabe able to adjust them but this was not the situation in another 340 I have with stock rockers. I will try to add a picture. Will there be enough adjustment, or do I need longer rods.
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Offline cuda lover

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Re: push rod lengths
« Reply #1 on: March 11, 2017 - 07:24:29 PM »
here is picture
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Offline YO7_A66

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Re: push rod lengths
« Reply #2 on: March 11, 2017 - 10:14:34 PM »
 I would suggest that you purchase a set of adjustable pushrods. Then you can measure each one and order exactly the length that you need.  When you have a pair, the procedure just goes quicker. You can also use the adjustables to check for push rod clearances since you are using all new parts.
Your picture looks like too much gap.

 I would also suggest that you buy the best push rod that you can budget.
« Last Edit: March 11, 2017 - 10:40:43 PM by YO7_A66 »

Offline cudabob496

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Re: push rod lengths
« Reply #3 on: March 12, 2017 - 12:09:09 AM »
also get Comp Cams opinion
72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

2011 Kawasaki Z1000