what is this?

[jacques]

bought a pig in a poke.....supposed to be a GN motor...block number is 1261787....(79?)...head number is 25504443.....has a carburated draw thru turbo set-up....would like to know what it is before I start messing with it.....will an edelbrock#5486 fit, so I can plumb up a blo-thru set up?...maybe I can add TBI?
any info appreciated!!

 

[b4black]

How about intake or exhaust manifold casting numbers. These are the best for IDing the year, since rebuilt motors are common.

The Edlebrock will work if it's a '79 or later high-port head (I think it is by the casting numbers).

 

[jacques]

intake number is b-1261568......exhaust is 12616202...I paid $2000. for it,having been told it was a GN, but it has obviously been rebuilt. seller will take it back if I dont want it.....but I need to know if it is worth messing with? If I can modify it for a blo-thru, intercooled set-up?...maybe roller rockers from poston? was the oil pressure/volume adequate?and what stall to use on a 200r? thanx!

 

[b4black]

OK, it's a 1979 Turbo V6 for a RWD car.

$2000?, get your money back. It probably worth more like $200.

You could modify it for blow-thru, FI and intercooling, but for $2000 you could get a 86/87 Turbo/IC/SFI motor with all the good stuff included.

For $1500, you could get a reman 3.8 long block from GM with a warrenty. It won't have turbo internals, but then this '79 may not either (since it's been rebuilt).