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Carb Vs Turbo Long Block

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My 86' Turbo wagon engine is nearly worn out and I have an 86' carbed engine with only 120K on it. Can I bolt the Turbo stuff onto the carbed long block or are they set up differently for turbo?

 

Thanks

Have Fun!

Corbin

everything will bolt up. Be careful aobut timing and run premium gas.

 

the only mod is the rear block PCV vent is not present on CARB/SPFI blocks...so you will ahve to block that off for the turbo stuff on the manifold. Easy peasy fix.

A little clarification

 

 

The turbo stuff will NOT bolt on to a carb long block.

 

It will however, work on a carb shortblock.

 

You need to use the turbo heads and associated stuff.

I don't want to sound like a naysayer, but for the sake of informedness and since there is the possibility that I could pursue a similar setup in the near future, what is the longest that one of these turbo-on-carb-block engines has held together? The most long-lived one I know of is WJM's, which was good for something like 20k.

wjm used a spfi block, BIG difference in compression there. the carb block is just slightly higher than [turbo] stock

A little clarification

 

 

The turbo stuff will NOT bolt on to a carb long block.

 

It will however, work on a carb shortblock.

 

You need to use the turbo heads and associated stuff.

 

Oh, i missed that LONG/SHORT block part...NO..wont fit LONG block...but will SHORT block.

 

I don't want to sound like a naysayer, but for the sake of informedness and since there is the possibility that I could pursue a similar setup in the near future, what is the longest that one of these turbo-on-carb-block engines has held together? The most long-lived one I know of is WJM's, which was good for something like 20k.

 

24k miles.

 

s_s: Yes, 9.5:1 as compared ot 8.5:1 is ALOT in turbo world....I still dont see how the shortblocks have different compression ratios....as the P#'s were the same the last time I looked them up....

s_s: Yes, 9.5:1 as compared ot 8.5:1 is ALOT in turbo world....I still dont see how the shortblocks have different compression ratios....as the P#'s were the same the last time I looked them up....

please correct me if I'm wrong, but isn't it mostly the pistons that create the compression differences.

s_s: Yes, 9.5:1 as compared ot 8.5:1 is ALOT in turbo world....I still dont see how the shortblocks have different compression ratios....as the P#'s were the same the last time I looked them up....

No, the part numbers are different.. This came up a while back and I actually posted the part numbers. It is 100% the pistons that make the difference between the ranges of compression in EA82 motors. IIRC, I posted P/Ns for 1987, as it was the only full production year with all three fuels systems in the US.

 

Basically it is like this

 

Piston tops:

 

Turbo - concaved

carb - Flat

SPFI - convex

I don't want to sound like a naysayer, but for the sake of informedness and since there is the possibility that I could pursue a similar setup in the near future, what is the longest that one of these turbo-on-carb-block engines has held together? The most long-lived one I know of is WJM's, which was good for something like 20k.

Gee, so if/when I build my turbo-on-SPFI-block, all I have to do is last more than 20k to be considered a success? :drunk:

  • Author

Thanks for the great info everyone!

 

I think I go ahead with the Turbo on carb short block and drive the crap out of it while I put together another turbo motor on the side.

 

Have Fun!

Corbin

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