rocker arms

bigunitmudracing April 12th 2011, 2:37 am

I am working with 69 heads and can only find roller rockers for them... can i use the stock stud in the heads with roller rockers???? and with roller rockers can i use my stock pushrods?
thanks

dfree383 April 12th 2011, 2:50 am

You will need to have the pedistals machined down the thickness of a guide plate and install guide plates if you want to run roller rockers inplace of the rail type ones. New studs are a good idea too.

No the factory pushrods in that engine will not work, they are not hardend for use with a guide plate.

bigunitmudracing April 12th 2011, 4:32 am

what i was wondering. if you get the machine work done to use guid plates can you still use the stock Length push rods?

dfree383 April 12th 2011, 4:56 am

you'll need to measure them and it depend on the rockers.

If your going to do it upgrade to 3/8" pushrods while your at it.

69F100 April 12th 2011, 6:05 am

dfree383 wrote:you'll need to measure them and it depend on the rockers.

If your going to do it upgrade to 3/8" pushrods while your at it.

X2 on the upgrade to 3/8 I didn't up grade to 3/8 and when i went to the solid lift cam it was harder to find the crome moly pushrods 5/16 in the size i needed the 3/8 would have been about $25 cheaper than the 5/16 that i bought.the guide plate 5 /16 or 3/8 cost the same .

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