question about going from 1.5 to 1.6 RR

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Apr 3, 2006 | 04:03 PM

97SS0594

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Registered User

Joined: Jul 2002

Posts: 1,651

From: baycity, mi

question about going from 1.5 to 1.6 RR

do i need to change my pushrods? i have 1.5RR in the car now, and i have 1.6RR to put in, will this change my lift geometry enough that i would have to go to a longer pushrod?

Apr 3, 2006 | 04:07 PM

BlackScreaminMachine

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Joined: Jun 2005

Posts: 642

From: Wolcott, CT

Re: question about going from 1.5 to 1.6 RR

a pushrod length checker is the proper way to do it, but I used 7.200" pushrod on stock lifters for both.

Apr 3, 2006 | 04:20 PM

WS Sick

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Joined: Dec 2003

Posts: 2,724

From: Oklahoma where trees are made of wood.

Re: question about going from 1.5 to 1.6 RR

I would say you'd be fine with the stockers.

Apr 3, 2006 | 05:47 PM

Jazsun

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Joined: Jun 2005

Posts: 1,834

From: Indiana

Re: question about going from 1.5 to 1.6 RR

I used the stockers, the hot cam kit which includes 1.6 RR's is made for hte LT1 and doesnt include them, so GM must not think you need them either.

Apr 3, 2006 | 07:20 PM

Bud M

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Joined: Oct 2000

Posts: 2,915

From: Sacramento

Re: question about going from 1.5 to 1.6 RR

I used the stock pushrods with my Pro Mags. On later year LT1s you can use the stockers if you are using self aligning rockers. With guideplates you will need hardened pushrods.