Author Topic: 302 engine build piston recomendations  (Read 7968 times)

crobjones2

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Re: 302 engine build piston recomendations
« Reply #30 on: September 27, 2012, 12:29:10 AM »
deviating a little bit more... is there a current good reproduction of the "pink" rods? or a good source for reasonably priced originals?
Chris
69 SS 350

lynnbilodeau

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Re: 302 engine build piston recomendations
« Reply #31 on: September 27, 2012, 01:43:10 AM »
Thanks John.  I would like to know what spring Jerry uses with the comp cams 30 30 12-107-3 grind.

I plan to use the springs you suggested with the one 30 30 cam I still have.  I also have two of the 12-107-3 cams and am wondering if I can use the same springs.

Lynn

As for Pink rods, there are still some originals out there. 

1968 Z28

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Re: 302 engine build piston recomendations
« Reply #32 on: September 27, 2012, 01:56:34 AM »

I plan to use the springs you suggested with the one 30 30 cam I still have.  I also have two of the 12-107-3 cams and am wondering if I can use the same springs.

Lynn

The springs that Comp Cams recommends for the 12-107-3 are rated at 105lbs @ 1.700" and 273lbs @ 1.250", part # 981-16.  Don't know what Jerry M. is using.

Summit Racing quotes the ratings for the Sealed Power #VS677 at 76lbs and 194lbs.  Don't know if there are other springs with the same number that are rated different.
Jerry G.

Z28-1968-07C-Norwood
Ermine White, Red Std. Interior
2nd. Owner, 38,000 miles

Jerry@CHP

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Re: 302 engine build piston recomendations
« Reply #33 on: September 28, 2012, 11:51:03 PM »
Using the Comp Cam springs.  About 115 on the seat, these are very forgiving and will last a life time.  I think $75.00.

Any late '60's 3/8 bolt connecting rod will work fine for the 302 application.  Just have them shot peened and magged with good ARP rod bolts and you're good to go.

Jerry

PURESS

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Re: 302 engine build piston recomendations
« Reply #34 on: September 29, 2012, 11:56:19 AM »
Hi Jerry...is this you..... http://www.youtube.com/watch?v=tAt8N-vH0gg     looks like a blast...

Jerry@CHP

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Re: 302 engine build piston recomendations
« Reply #35 on: October 01, 2012, 02:21:59 AM »
Yes, last year at the Cecil County points race, August 2011.  It's about 8600 rpm each gear and 8300 through the traps.

Jerry