Chromoly pushrods for an otherwise stock 2.0?

Alpine · Post by **Alpine** » Sun Feb 01, 2004 2:06 pm

Is it a good idea to replace the stock pushrods with these when I rebuild the 2.0 from my 914?

Guest · Post by **Guest** » Sun Feb 01, 2004 4:28 pm

Alpine wrote:Is it a good idea to replace the stock pushrods with these when I rebuild the 2.0 from my 914?

Think weight and the answer should be given.....
J.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun Feb 01, 2004 5:33 pm

The Chromolys we run are as light as stock PRs and allow you to set the valves at zero lash- really easy and not much louder than aluminum..

Alpine · Post by **Alpine** » Sun Feb 01, 2004 5:40 pm

Jake, do you recommend the 3/8" MANTON Chromoly pushrods that aircooled.net sells? If so, I would need the "straight" pushrods for my 914 2.0, right?

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun Feb 01, 2004 9:40 pm

Manton are ALL that I use... I helped John get the deal with them to sell their pushrods... They are the same ones I use in my engines.

Alpine · Post by **Alpine** » Sun Feb 01, 2004 10:01 pm

Jake, you wrote in another post http://www.shoptalkforums.com/viewtopic ... ght=manton "If the cam is stock and the engine is unaltered (very rare) you can run stock pushrods. Otherwise the valvetrain geometry will be wacked out." Does that mean that I have to have the Mantons cut to the right length? With the Mantons, is the valve adjusting procedure similar to when using the stock pushrods? Adjust lash to zero every 6000 miles or 6 months? Thanks.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun Feb 01, 2004 10:26 pm

If ANYTHING has changed with the engines dimensions (cam base circle, pushrod cup heaight, lifters resurfaced, cylinders shimmed, heads surfaced) you will not be able to attain proper valvetrain geometry with stockers 80% of the time.....

You'll see when you do it- All the research in the world won't turn the wrench for you.

Alpine · Post by **Alpine** » Sun Feb 01, 2004 10:48 pm

Thanks for the info, Jake. I guess I'll be buying an adjustable pushrod first.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun Feb 01, 2004 10:55 pm

Many adjustable pushrods do not have the same tip radius as a Manton. If they don't the geometry is almost worthless. I suggest bying an extra manton and using it for a tool...I have yet to find an adjustable rod the works with the mantons 100%

JohnConnolly · Post by **JohnConnolly** » Mon Feb 02, 2004 10:47 am

we bought adj PRs until we saw how they are made (horrible). Now, we take stock pushrods and modify them OURSELVES for our adj PRs to ensure this doesn't happen. I know exactly what Jake is talking about.

John
Aircooled.Net Inc.

Guest · Post by **Guest** » Mon Feb 02, 2004 10:52 am

JohnConnolly wrote:we bought adj PRs until we saw how they are made (horrible). Now, we take stock pushrods and modify them OURSELVES for our adj PRs to ensure this doesn't happen. I know exactly what Jake is talking about.

John
Aircooled.Net Inc.

Are your adjustable pushrods suitable for determining the length of the (Manton) chromoly pushrods I would need?

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Mon Feb 02, 2004 10:57 am

Glad John is doing this..... I did not know that.

JohnConnolly · Post by **JohnConnolly** » Tue Feb 03, 2004 1:11 pm

yes, as long as the tip radius is correct you are golden.

John
Aircooled.Net Inc.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Tue Feb 03, 2004 1:12 pm

The tip has everything to do with your measurements...

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Chromoly pushrods for an otherwise stock 2.0?

Chromoly pushrods for an otherwise stock 2.0?

Re: Chromoly pushrods for an otherwise stock 2.0?