3/8" Pushrod Question with ETP 215 Heads

Reply Subscribe

Thread Tools

Search this Thread

Oct 5, 2006 | 12:43 AM

jimmyz80

Thread Starter

Teching In

iTrader: (1)

Joined: Dec 2001

Posts: 23

Likes: 0

From: San Jose, CA

3/8" Pushrod Question with ETP 215 Heads

What's the deal with running 3/8" pushrods on ETP heads? I'm having some weird issues with my setup in the higher RPM range (in another thread here), and I want to swap in some stiffer and slightly longer pushrods. My existing 5/16" pushrods nearly touch the pushrod bores in the head. Will 3/8" pushrods even fit? I'm using stock rockers on the ETP rocker stand.

Oct 5, 2006 | 05:00 AM

vettenuts

TECH Senior Member

iTrader: (4)

Joined: Jul 2004

Posts: 8,092

Likes: 13

From: Little Rhody

Have you considered tapered pushrods?

Oct 5, 2006 | 05:47 AM

beardWS6

TECH Addict

iTrader: (1)

Joined: Aug 2002

Posts: 2,879

Likes: 0

From: Lake Jackson,TX

Have you called Cary at ET? Talk with him, he will get you on the right track!

Oct 5, 2006 | 05:01 PM

pianoprodigy

TECH Apprentice

iTrader: (1)

Joined: Apr 2005

Posts: 315

Likes: 0

From: Tampa Bay Area, FL

I got the ones that Andy @ A&A recommended. They were expensive.

Oct 5, 2006 | 08:47 PM

02ZOh6

TECH Apprentice

Joined: Feb 2005

Posts: 395

Likes: 0

Quote:

Originally Posted by jimmyz80

I have 5/16" hardened/doublewall also and mine almost touch too. I'm not sure if we can go any bigger. No dyno yet either so I don't know if I have the patented dip after 6k.

Oct 5, 2006 | 08:59 PM

mr2guru

TECH Resident

iTrader: (16)

Joined: Dec 2004

Posts: 855

Likes: 1

From: Kansas City Area

Quote:

Originally Posted by jimmyz80

I noticed that too. The pushrod holes are offset to the centerline of the lifter on every other one so 3/8 pushrods will be real close. But there are at least 3 people I know running 3/8 pushrods with ET heads. I would assume they work. Mine are on order regardless.

If they touch or don't fit I guess I will have my machine shop bore out the hole ever so slightly.

Quote:

Originally Posted by vettenuts

Have you considered tapered pushrods?

Just the last 1/2" is tapered to 5'16". Point is moot.

Reply Subscribe