Engine swap

[jik]

Can I swap a 1991 hummer gm 6.2 litre engine in my 1989 Silverado gm 6.2 litre. Are the crankshaft the same? Or am I going to have trouble installing to transmission?

[Dieselboy]

Welcome to the forums jik,

Other than the intake and exhaust manifolds, it's all the same.

[ 09-14-2003, 07:59 AM: Message edited by: Dieselboy ]

[jik]

Do I have to buy a different intake and exhuast manifolds? Can not use stock 6.2 engine parts.

[britannic]

Stock 6.2L parts will be fine, the Hummer used exhaust manifolds that won't fit the truck frames and the turbo version used a special intake with a center mounted turbo on some of them. I believe certain N/A intakes can be used with no problem, but obviously physically check them for it.

[Dieselboy]

I think that crew84 had used a single plane hummer intake on his turbo project. I haven't looked at my hummer intake in a while (it's sitting in a box), but the only difference that I remember was that the studs were located at 3 & 9 o'clock rather than 12 & 6.