I have a 89 bird that am putting a V8 in, I am wanting to know if the brakes and suspension is better on a V8 car. I found a 89 formula in the junkyard with the biggest honkin sway bar I have ever seen in my life, its way bigger than the one on my bird. Is this a 36mm sway bar? and also, will the rear be bigger than my car? thanks. I posted this the other day but got no replys

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Wide Open Till You See God...Then Brake

 

v6 springs are for light engins up front. put a v8 and it's going to bottom out more often. Measure the sway bar, can't tell you what it is, you're the one that saw it, not me. For the most part you'd be better off getting new springs all around if you plan on going to a v8.

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, Jon (350 TBI!)
91 Red My website

 

The V6 springs will be fine, if they are in good shape. I have a v8 in my ex-v6 car and it sits nicely. The v6 brakes also work fine, but I am sure they did make different rear drums sizes for some models.

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1992 Pontiac Firebird 350/Six Speed
1987 Toyota Pickup 383/500+ HP

 

Brakes are the same v6 to v8 if both are front disc rear drum (unless you find a 1LE thirdgen in the yards, not likely though).

Springs are different front and rear.

Swaybars are different. My V6 didn't even have a rear bar.


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"Beware he who would deny you access to information, for in his heart, he dreams himself your master"

'84 Black Camaro ZZ4 M5 (V-6 in a former life) -- street beast
'91 Medium Blue Metallic Z28 A4 (UB-HSTRY's old ride) -- currently broken
'99 Navy Blue Metallic Firehawk #120 M6 (99.44% stock) -- daily driver

 

if you wana be a drag racer leave the v6 springs in. If you want to handle, grab the WS6 stuff or get some aftermarket stuff.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

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