I'm in way over my head guys, I need HELP (problem with new

[Guest the_dj]

I'm in way over my head guys, and I'm kinda counting on you to help me figure out where I screwed up.

 

The TPI intake has 6 holes to bolt down to each head. The 4 outside are at one angle and the 2 middle are a much different angle. My new heads have all the same angles across all 4 holes. It also seems that the hole in the manifold are too high (wide) for the heads.

OLD heads were casting #10110810, and the new ones are #14011034.

 

What should I do? Do I need a different set of heads, or a new intake? I've already had my fair share of problems and really want to finish the project.

 

Thanks guys,

Sam

 

Here are some links to posts I've made on other forums where I didn't get helpful answers. :

Chevytalk.org

Ls1.com

[Guest the_dj]

Problem: old heads are '87 and after while the new ones are pre-'87.

 

I'll need a new intake manifold before I can use them.

 

I'm going to use my old heads until I can get a new intake. I'll continue to use the new cam.

 

Sam

[denny411]

Is there any chance of exchanging your heads for the proper design? If not,What heads(manufacturer) do you have now? You may be able to find someone to buy these from you, so you can get the proper year/style. That may be a more cost effective way to solve your problem.

[fl327]

you can have it modified to fit those heads, its a common mod, go to a engine shop they should be familiar with it.

[Guest the_dj]

Originally posted by LEN168:

you can have it modified to fit those heads, its a common mod, go to a engine shop they should be familiar with it.

Thanks, I think I'll check that out. If they can't do it, I'll sell my TPI on eBay and pick up a Holley Stealth Ram and a hood cowl and install everything at Thanksgiving or Christmas.

 

Sam

[denny411]

I modified the late style intake to fit early heads for my truck, but it`s not something a novice should try. It takes some ingenuity with an air chisel and a die grinder. It`s messy but it can be done.

[Guest the_dj]

Originally posted by denny411:

I modified the late style intake to fit early heads for my truck, but it`s not something a novice should try. It takes some ingenuity with an air chisel and a die grinder. It`s messy but it can be done.

How long do you think it would take?

[denny411]

If you have the right tools, it can be done in a couple hours TOPS.

 

first you have to use the air chisel to chip away at the aluminum. I`m not sure exactly what your intake looks like, but mine had raised bosses at the four center bolts. these have to be chipped down to match the angle of the other holes.

 

You will then need to elongate the existing holes to get the bolts to thread in straight.it is important to get the proper angle on the flange, or the bolts will not tighten down evenly, causing inaccurate torque.

 

You need to know that once you start this there is no going back. You need to be sure that you will have enough clearance to put the bolts in at the new angle.

 

Another option would be to have the heads redrilled to match. I had a set of edelbrock heads drilled and had thread inserts put into them.("tap cons" I think)

 

They are solid with threads on the inside as well as the outside. more solid and permanent than a helicoil.

 

I think it was 6.00 each including labor, but that was a few years ago

[fl327]

i would say take the intake to a shop and have them do it, if they arent that busy should take them an hour or so, it shouldnt be their first time doing it, if you arent used to stuff like this, i would say spend the money on this process, and just run the intake you have now, that holley stealth ram sounds like bucks and ive read that youre pretty young, get that car up and running, maybe you wont be at 100 max power, but in that car you have enough to tame most with the combo you have, get that intake sent out, and bolt em up and burn some rubber.

[Guest the_dj]

OK, dad and I converted the intake today. There are a few things left to figure out, but the intake is on and the timing chain cover/oil pan are back on. Much progress today but still not finished.

 

Sam