Can some one tell me if a TBI 4.3 exhaust manilold..will fit on a 4.3 Vortec cyl. head..mine has a crack on the drivers side.it's gonna be a job to change...probably have to take it out throug the bottom...because of the steering...also the power steering bracket has to come off...not to mention breaking bolts! Appreciate any advice. Thanks! Bobby
Should fit, however if it is a used manifold it may not fit as they tend to warp (that is why a lot of them are cracked). My 94 had both broken, the DS right behind the steering shaft and the PS was snapped just behind the first mounting ear. I ended up pulling the top off the engine because of rusted bolts.
It is a used manifold.I put 2 used ones back on my 88 4.3 when I rebuilt the engine and so far they seem to be holding up good.I'll get to it when the weather breaks. Bobby
The mistake that many make is over tightening the because it need to float a bit on head bfor expansion and contraction. One that crack, crack because they cannot expand and contract properly not because they warp. (they can warp or crack from biult up stress though if they cannot expand and contract properly)
----------------- TheSnoMan.com
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.