Heads setup for Solid roller, what to change for hydraulic roller (valvesprings & ?)

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Aug 2, 2004 | 11:47 AM

Mike86Z28

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Joined: Jul 1999

Posts: 137

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From: Midwest City, Ok, USA

Car: 98 Z28

Engine: LS1

Transmission: T56

Axle/Gears: 3.42

Heads setup for Solid roller, what to change for hydraulic roller (valvesprings & ?)

I have some Afr 195's that were setup for a solid roller cam. Since I am going to put them on my L98 (hydraulic roller cam), what do I need to change on the heads besides the valvesprings? I was probably going to run a XR276HR cam (.503/.510 w/ 1.5 rocker).

Thanks in advance.

Edit - It's probably unimportant but the heads have 7/16" studs and 68cc.

Aug 2, 2004 | 12:59 PM

Mike86Z28

Thread Starter

Member

Joined: Jul 1999

Posts: 137

Likes: 0

From: Midwest City, Ok, USA

Car: 98 Z28

Engine: LS1

Transmission: T56

Axle/Gears: 3.42

Does this sound right?

Comp 977 valve springs/recommended locator/titanium retainers ?

That's what the guys at Thunder Racing told me I needed to change on the Afr's so I can run the XR276

Aug 2, 2004 | 09:50 PM

Stekman

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Joined: Jul 2003

Posts: 4,803

Likes: 2

From: Grand Rapids, MI

Car: Z28

Engine: Sb2.2 406

Transmission: Jerico 4 speed

Axle/Gears: Ford 9" 3.60

Try the Comp 987's. The seat pressure on the 977s at the given installed height are a bit high. Shim the springs if needed to get the appropriate installed height.