p51 heads

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p51 heads

Post  Rickytx630 on August 5th 2016, 4:03 pm

i have a few questions about the p51 heas. in the process of swapping a set of A429cj heads off for a set of p51. my question is as i was being told i cannot use my pushrods that i have now. whats the length and does anyone has a price? kaase doesnt list the price on them? if the pushrods are .100 longer then factory can i use the ones i have or will i need them longer then what i have?

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Re: p51 heads

Post  Lem Evans on August 5th 2016, 4:36 pm

The rods are not only longer but, the exhaust are longer than the intake.

You'll need a new set of rods. I get about $125 for the 3/8".

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Re: p51 heads

Post  Rickytx630 on August 6th 2016, 12:54 pm

is that something you keep in stock?

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Re: p51 heads

Post  jbozzelle on August 6th 2016, 1:05 pm

You best to check for proper length before you order. There are some slight variances in the rockers from manufacturer to manufacturer that will affect pushrod length.

For example I went from a set of the FRPP A460 blue rockers to a set of the new Comp Ultra Pro Magnum and I need a slightly different length now.

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Re: p51 heads

Post  Lem Evans on August 6th 2016, 2:33 pm

Rickytx630 wrote:is that something you keep in stock?

I usually drop ship direct from the mfr.

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Re: p51 heads

Post  Rickytx630 on August 7th 2016, 8:30 pm

Lem Evans wrote:
Rickytx630 wrote:is that something you keep in stock?

I usually drop ship direct from the mfr.

good to know. do you have or get the bigger pushrods? 7/16? jw not sure what size ill need. motor will be seeing 7200-7500 weekly .738/.738 roller. bracket motor

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Re: p51 heads

Post  Rickytx630 on August 7th 2016, 8:31 pm

jbozzelle wrote:You best to check for proper length before you order.  There are some slight variances in the rockers from manufacturer to manufacturer that will affect pushrod length.

For example I went from a set of the FRPP A460 blue rockers to a set of the new Comp Ultra Pro Magnum and I need a slightly different length now.

good to know. im running the scorpion 1.73 rockers now. one did break after 13 years of use. ill be buying a new set tho

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