Broken 4.9 tensioner (Page 1/1)
lou_dias MAR 30, 11:25 AM
HELP!

Does anyone have a part number for the tensioner used in this swap. I'm thinking it's not stock. This was from a Fiero Factory conversion to which I added an Allante intake to...

[This message has been edited by lou_dias (edited 03-30-2020).]

Neils88 MAR 30, 12:30 PM
I used the tensioner off a 94 Camaro. From my research at the time, this was the part that most people doing the 4.9l swap were using. No guarantee that it's the part used by every swap, but probably a good place to start. Sorry...I don't have the specific part number on hand.
Dennis LaGrua MAR 30, 03:29 PM
I don't know what the guy that did your 4.9L swap used, but the tensioner on mine is from the 3.4L 93-95 Firebird/Camaro.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
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fieroguru MAR 30, 07:11 PM
Take the old one with you to the parts store, but I am pretty sure the guys above are correct. I use the same one on my SBC and LS swaps.
https://www.autozone.com/ex...lley-305232/353964_0
Raydar MAR 30, 07:42 PM
I have also heard that the FF used a Camaro tensioner.
lou_dias APR 02, 08:39 AM
The 3.4 v6 tensioner was a perfect match!
Hopefully this fixes my perpetual belt squeal as well....

Thank you all for your help!

[This message has been edited by lou_dias (edited 04-02-2020).]

theogre APR 02, 09:38 AM
Note that Too Short belt may seem to work but will wreck tensioners fast.
Same as 87-92 L4 in Fiero and others.
See my Cave, Serpent Belt

Is very possible this broke for same reason.

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave