engine swaping

[issues1985]

i have a 2000 blazer and a 94 jimmy both with vortech 4.3 engines. i am trying to find out if the blocks are the same, i would like to put the intake manifold from the 94 on the 00 motor and install it in my 85 s10.

[issues1985]

have 00 blazer and 94 jimmy both with 4.3 vortech engine, trying to find out if the blocks are the same, would like to put intake from 94 motor on 00 motor to put in my 85 s10. help please!!!!

[issues1985]

i have a 00 blazer and 94 jimmy both wit 4.3 vortech engine, trying to find out if the blocks are the same, i would like to put the intake off the 94 motor on to the 00 motor to install in my 85 s10. will this work?

[SCredneck]

While your 94 may have center bolt valve cover that say "vortech" on them, it is not the same as the 2000. The "true" vortech heads started in 96 IIRC and are very different. You can't just take the 94 intake and bolt to the 2000 heads. It CAN be made to work, but it takes a lot of work. The biggest issue is that the intake bolt pattern is different on the 96+ vortech's. It will be a PITA to make it work. It's not a bolt-on-and-go deal. You can get a lot more useful info than I can give you here from the sy-ty guys. To more directly answer the question you asked, the heads will swap from block to block, yes. The issue will be that the intake won't swap from the pre-vortech heads to the vortech heads without a lot of work.

[12sws27]

Why not use to 94 block, put the 00 heads on it, get a 2114 Edelbrock intake and put a carb on it? I'm thinking the 94 didn't have the balance shaft and might have a better cam? I know the 2000 has better heads.

[Hammer Head]

I merged all your threads that were in the wrong areas here..