MustangWorks.com : Ford Forums - View Single Post - Aluminum RRs good for only 20-30K miles??

Chevyguy · 11-02-2001, 08:37 AM

Spring pressure, hmm we may be on to something here.

I had this thought last night, what about the 96 LT-4 engine in Vettes or in some 97 F bodies. They have Alu rollers from the factory, would seem hard to imagine less than 100K mile durability for a factory install, but maybe they figure nobody will notice the trunion wear?? Maybe valvetrain geometry has a role, I know the LT-4 motor uses a very light valve/spring/retainer setup

I am puzzled now

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Frank W 90 5.0 LX Notch MAC 2.5"cat bk FMS alu ds, MSD coil, MAC shifter 2.73 gears user site
URL=http://picturecenter.kodak.com/share?invite=y8QgEr3w4PETJSxz75GUz7Mho580knQt]My 90 Notch and 88 2.3 SOLD!!![/URL]
74 Chevy Laguna Type S-3 305 now 454 soon My web site

11-02-2001, 08:37 AM	#23
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	Spring pressure, hmm we may be on to something here. I had this thought last night, what about the 96 LT-4 engine in Vettes or in some 97 F bodies. They have Alu rollers from the factory, would seem hard to imagine less than 100K mile durability for a factory install, but maybe they figure nobody will notice the trunion wear?? Maybe valvetrain geometry has a role, I know the LT-4 motor uses a very light valve/spring/retainer setup I am puzzled now ------------------ Frank W 90 5.0 LX Notch MAC 2.5"cat bk FMS alu ds, MSD coil, MAC shifter 2.73 gears user site URL=http://picturecenter.kodak.com/share?invite=y8QgEr3w4PETJSxz75GUz7Mho580knQt]My 90 Notch and 88 2.3 SOLD!!![/URL] 74 Chevy Laguna Type S-3 305 now 454 soon My web site