Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: CatCarMan2012 on March 18, 2008, 09:41:16 AM

Title: 1.72 rockers on 5.0
Post by: CatCarMan2012 on March 18, 2008, 09:41:16 AM
I read somewhere that the 3.8s have 1.72 ratio rockers.  If I got 16 of them from the junkyard, would they fit my E7TEs?

It's kinda a just wondering thing.

-Dan
Title: 1.72 rockers on 5.0
Post by: V8Demon on March 18, 2008, 03:22:23 PM
According to Coolcats they will.

The ratio is in fact 1.72, but you'll see more gain out of a set of roller rockers.

http://store.summitracing.com/partdetail.asp?part=CRN%2D44746%2D16&autoview=sku
Title: 1.72 rockers on 5.0
Post by: Tbird232ci on March 18, 2008, 03:35:41 PM
If my memory serves me correctly, they will not fit. The bolt that holds them down is a different size than that of a 5.0. It has been a long time since I've looked though.
Title: 1.72 rockers on 5.0
Post by: CatCarMan2012 on March 18, 2008, 06:09:37 PM
Next time I go to the U-Pull I'll do a test fit.  I realize rollers would be alot more worth while but the coug is a bottom dollar fun car.  The SC gets all the expensive parts.

If they go on and make that weazy 5.0 a  little umph it would be worth  it to me.

-DZ
Title: 1.72 rockers on 5.0
Post by: Crash225 on March 18, 2008, 08:47:25 PM
I've seen a magazine article saying that you could use ones from a 460. Has anybody here actually done this?
Title: 1.72 rockers on 5.0
Post by: Crash225 on March 18, 2008, 09:46:25 PM
I'm onboard with danzajax. I'd like it to be fast but its just for fun. If something breaks I won't be as pissed off.:D  Anywho, I just finished searching coolcats and they only make a reference to 1.6 ratio rockers. What year had 1.72s? I saw alot of MN12's in the jy the other day with 3.8's.
Title: 1.72 rockers on 5.0
Post by: V8Demon on March 19, 2008, 07:26:35 AM
Quote
Anywho, I just finished searching coolcats and they only make a reference to 1.6 ratio rockers. What year had 1.72s?


All year 3.8's had 1.72 ratio rockers as far as I know.

Most Ford V8's came with 1.6's
Title: 1.72 rockers on 5.0
Post by: dudeman351 on March 19, 2008, 07:32:42 PM
the 460 rocker arms fit the clevelands. also bb chevy rockers fit the 335 and 385 series motors.
Title: 1.72 rockers on 5.0
Post by: Tbird232ci on March 20, 2008, 04:40:21 PM
Quote from: V8Demon;209789
All year 3.8's had 1.72 ratio rockers as far as I know.

Correct.