Hot Air Block

[Big Dawg]

Hey guys, I have a question there is a local guy selling a 84-85 Hot air Block and he said pulled out of a GN years ago to do an LS swap and is not sure if it was 84 or 85. Was there any differences in the Block between the 2 years? I have been really thinking of building another 85 Hot Air motor as the stock one in my car is tired...40years old Bone stock internals. I just want to do this slowly and at my own speed.

Also what do these blocks refer to as....example 109 Block are the intercooled blocks. Wondering what these ones are.

What parts have any current or past Hot air owners had great success with for overall power? Cam, Pistons, heads etc.... I have been looking at upgrading my TA33C to a Work Turbo...they have a couple real beefy ones available now for the Hot Airs.

Here are a couple pics of the Block for sale...Rockers are the only parts that look upgraded as there is no info from the seller.

 

[WE2Regal]

What's the casting number on the block?

 

[pacecarta]

pics posted are a 109 NA ( carb) block not a turbo block , turbo drain boss hasnt been tapped for drain but isnt hard to do for intercooled .. heads have a bulk remanufacturer penny in the freeze plugs , whole motor may be a reman and have cast pistons (not for boost) in it (have seen these up to .60 over in some remans ).. if reman i wouldnt expect crank shaft to be a turbo crank with rolled fillet on rod journals ... but has roller rockers

 

[pacecarta]

also see a serpentine tensioner pulley in the valley so id guess it was used with intercooled setup
oil pump was modified , has a boosterplate or tall gear hi volume plate in it as well as an adjustable max oil pressure bypass, timing cover is pointed for 20bolt pan