302 pistons - Team Camaro Tech
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post #1 of 11 (permalink) Old Jan 9th, 10, 12:17 PM Thread Starter
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302 pistons

Who makes the best 302 pistons? I'm building a 302 and wanted to know what pistons everybody is using when rebuilding their 302's.
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post #2 of 11 (permalink) Old Jan 9th, 10, 04:18 PM Thread Starter
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Re: 302 pistons

What brand of pistons are you guys using when building your 302's? Anybody?
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post #3 of 11 (permalink) Old Jan 9th, 10, 07:30 PM
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Re: 302 pistons

Hi Daryl, the best way to do the 302" SB is use a "long-rod" in conjunction with a piston designed for the 350" SB??

Many more pistons are available to choose from with this setup. There are numerous excellent brands to work with, Ross' and Diamond's among them!

The "long-rod" allows some really lightweight pistons to be in the program.

We've done a few this way over the years, works real well!

Thanks, Gary in N.Y.

P.S. You need to place some add'l info here with respect to the overall build. The cylinder heads, final C.R., etc. You need to "expand" on the overall platform!!
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post #4 of 11 (permalink) Old Jan 9th, 10, 08:57 PM Thread Starter
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Re: 302 pistons

I want to build a 302 as close to what would have originally been assembled by GM for 1968. I have a 378 2-bolt block, 1178 crank and 291 heads. I would like to stay with the 5.7 rods. Any suggestions for pistons with that setup? Also would like to keep the CR at 11:1.
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post #5 of 11 (permalink) Old Jan 9th, 10, 10:33 PM
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Re: 302 pistons

Quote:
Originally Posted by 1968RallySport View Post
I want to build a 302 as close to what would have originally been assembled by GM for 1968. I have a 378 2-bolt block, 1178 crank and 291 heads. I would like to stay with the 5.7 rods. Any suggestions for pistons with that setup? Also would like to keep the CR at 11:1.
Hi Daryl, look at what you're doing from another standpoint!

You will most likely need to "special-order" any 302" pistons with the factory C.H. of 1.800"+.

If you stay with the factory 5.700" rods you will need to run the "pressed- pins" setup on the "special-order" pistons, which will most likely have the "floated-pin"/"lock-ring" option anyway??

You won't be able to assemble the rods and pistons (unless you own either a pin-press or a rod-heater), however, on the "floaters", you can do the assembling at home if necessary!

The "long-rod" units make more power by design, lighter pistons/lighter rings reduces "frictional HP"!

By the time you add the bill up with making the 5.700" rods workable and ordering a set of "true" custom pistons, you will be close to some aftermarket rods (with bushings) and a set of "custom-stocking" pistons!

Thanks, Gary in N.Y.

P.S. From an outsiders view, you will be the only person who know the "rods are long and the pistons are light"?? The unit will be a much better build overall!!
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post #6 of 11 (permalink) Old Jan 9th, 10, 10:40 PM
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Re: 302 pistons

Quote:
Originally Posted by 1968RallySport View Post
I want to build a 302 as close to what would have originally been assembled by GM for 1968. I have a 378 2-bolt block, 1178 crank and 291 heads. I would like to stay with the 5.7 rods. Any suggestions for pistons with that setup? Also would like to keep the CR at 11:1.
use the KB802 piston from Keith Black.they are a premium forged piston and is 11to1 with the 64cc heads.check CNC Motorsports $412 a set.
Im finishing up my 302 for my 69 Z and thats what I used.you may want to up grade your rods at the same time.Im useing the Manley H beams but Scat makes a really nice rod.check there ICR5700-16 rod.nice peice and under $300.plus you can sell your old rods on EBAY.
Richard

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post #7 of 11 (permalink) Old Jan 10th, 10, 09:41 AM
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Re: 302 pistons

May want to take a look at these 302 pistons,they are Nhra approved

JE 123567
Venolia 302
CP Pistons C13CP
Ross 106583

This SRP 202890 is not

hope it helps
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post #8 of 11 (permalink) Old Jan 10th, 10, 09:56 AM
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Re: 302 pistons

I used Wiseco forged. They make them .03, .04 and .06 oversized. Readily available around $500 a set a few years back. Standard 11:1 with a stock build if .015" shims are used.

Wiseco catalogue

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post #9 of 11 (permalink) Old Jan 10th, 10, 10:09 AM Thread Starter
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Re: 302 pistons

Richard, you don't happen to have the part number of the Manley rods you are using do you?

Quote:
Originally Posted by z28rich View Post
use the KB802 piston from Keith Black.they are a premium forged piston and is 11to1 with the 64cc heads.check CNC Motorsports $412 a set.
Im finishing up my 302 for my 69 Z and thats what I used.you may want to up grade your rods at the same time.Im useing the Manley H beams but Scat makes a really nice rod.check there ICR5700-16 rod.nice peice and under $300.plus you can sell your old rods on EBAY.
Richard
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post #10 of 11 (permalink) Old Jan 11th, 10, 04:04 PM
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Re: 302 pistons

Quote:
Originally Posted by 1968RallySport View Post
Richard, you don't happen to have the part number of the Manley rods you are using do you?

Manley 14050-8
Richard

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post #11 of 11 (permalink) Old Jan 11th, 10, 06:01 PM Thread Starter
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Re: 302 pistons

Thanks for all the replies guys! I believe I have enough information to make a decision. Thanks again
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