hey guys, i bought a amazing beautiful 86' iroc for $250 with no motor in it, and im building a 350 small block from scratch.. im at my last step.. the intake.

I have the older style gen2 center bolt heads, all the intake bolts holes are on a 45 degree angle.

I bought a TPI setup off a 87 GTA on ebay, and im trying to figure out if all the bolt holes are on a 45 or if the center two need to be machined because i've heard that from some year to so on they were a different design.

Thanks!

 

Welcome aboard thirdgen.org.

Gen 2 is the LTx series of engines. Something tells me that's not what you meant.

The intake mount bolt angle is normally referred to as 90 degrees. From '87-up, the non-Vette intakes had the center two intake mount bolts on each side at 72 degrees. So, the intake base in that eBay set-up would have to be modified so those 4 center bolts will fit into the head.

 

Here are two pics of the intake:

http://i23.ebayimg.com/02/i/000/df/bc/6bf5_1.JPG
http://i9.ebayimg.com/04/i/000/df/bc/6cf4_1.JPG

like i said its off an 87 GTA, and i got the heads will all angled bolts..
Take a look and tell me if its still gatta be machined.

Thanks!

 

A little off topic but did you choose a cam that will work well with TPI?

 

that was actually going to be my next question. Im going with crane cams for sure, my father gets a discount on all ther products.. dirtcheap, he works at a marina.

I have a guy there figuring out what im going with, but if you have any opinions i would appreciate it.
This isnt going to be a strip/drag engine, i want basically an economical, smooth running.. but still get up n' git-r engine. kind of a mild taste.

also, the block is bored 4 thou' over if you come up with something.
Thanks.

 

Looks like an '87-up base.

 

Okay, im taking my heads to the machine shop once the intake comes, and ill have him bore the four middle holes to the correct diameter/angle.

Now, for the cam.. and good ideas for what i listed above?

Thanks!

 

i also see that you sell amsoil.. my father sells also. very good oil!

let me know about that cam,

John

 

You modify the intake, not the heads.

Crane has a series of computer-compatible cams. Is your 350 block roller ('87-up), or non-roller ('86-earlier)?

More of a user than a seller. I signed up as a dealer so I could get the products at a lower price. I help out a few people who just want some now and then.

 

Yeah i know that the intake needs to be modded, but im getting the heads re-seated and one valve is concaived so he's hooking me up with a new pair of valves.. and while he's at it ill have him mod the intake to fit the heads correctly.

I found this cam, tell me what you think.. it says i need a fuel pressure regulator to use the cam with economy, is this true?

and the block is an 87-up roller style.

http://cranecams.com/?show=browsePar...tType=camshaft