Another aluminum head question.

[DeCaff2007]

That's for 1 head, it say so at the bottom of the specifications.

 

[DeCaff2007]

Alright, a quick update to this, as holy crap that's a ton of $ to be gambling with.

I'm pulling the trigger on the Trick Flow heads. Thanks for that, @Schurkey

Next, since I don't want to wait nearly 3 months for heads that "might" come in, I'm putting my stock heads on in the meantime. Then, I'll at least have a running vehicle while waiting on the other heads.

Finally, I'm also waiting on a ridiculously large order from Rock Auto to arrive, i.e., main, rod, and cam bearings, oil galley plugs, all freeze plugs, piston rings, a plethora of gaskets, and of course, the new cam (with lifters).

The last thing I should have to decide on is what exhaust to run. My Trans Am has H00ker headers and I Effing love 'em! Not sure I can afford another set at this point in time.

That is all for now. I'll update my engine swap thread as parts arrive and time allows.

 

[Schurkey]

Stock heads? I'd put the iron manifolds back on, IF (big IF) the gasket surface is flat and smooth, and they're not cracked or otherwise damaged. Anti-seize the bolts so they come back out easily. As always, reduce the torque on the bolts by 10%--20% due to thread lubrication inherent in the anti-seize. I'd use brass nuts on the studs, again so they're easily removed.

Put the headers on with the aluminum heads.

 

[DeCaff2007]

Stock heads? I'd put the iron manifolds back on, IF (big IF) the gasket surface is flat and smooth, and they're not cracked or otherwise damaged. Anti-seize the bolts so they come back out easily. As always, reduce the torque on the bolts by 10%--20% due to thread lubrication inherent in the anti-seize. I'd use brass nuts on the studs, again so they're easily removed.

Put the headers on with the aluminum heads.

I had them cleaned and checked. Machinist says they are in "fair" shape. They are useable, and for the time being, better than nothing.

EDIT: Stock manifolds.... what!

 

[351FUN]

If those trick flows were available sooner I'd be all over them too tbh. I'm hoping to start my rebuild next week though so I reckon it's just gonna be ported stock heads.

 

[DeCaff2007]

Hehehehehe......

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[DeCaff2007]

So, I just wanted to post an update on this. My aluminum heads keep getting pushed back by the manufacture. First it was August, now September. Next thing I know, it'll be next year.

Surely there's another option? Something that's already in stock?

I see these, but comparing the specs with the Trick Flow heads, they are inferior. They are also roller cam heads. I'm NOT tearing that new cam out.

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[SNCTMPL]

They have those heads for a flat tappet as well.

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[SNCTMPL]

These are a good American made option, although not without their own issues. Intake and valve cover bolt patterns and no provision for egr. But they are a good head, and there doesn’t seem to be a good, affordable replacement for tbi’s.

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[L31MaxExpress]

Stock heads? I'd put the iron manifolds back on, IF (big IF) the gasket surface is flat and smooth, and they're not cracked or otherwise damaged. Anti-seize the bolts so they come back out easily. As always, reduce the torque on the bolts by 10%--20% due to thread lubrication inherent in the anti-seize. I'd use brass nuts on the studs, again so they're easily removed.

Put the headers on with the aluminum heads.

I question why you would use stock manifolds. Even shortys offer signifigant torque gains and better mpg. I put Holley performance manifolds on the L31 I put in the 87 van but they were dirt cheap when I bought them. There is no way I would use stock manifolds though, they are crack prone and highly restrictive. Headers are probably the best power per $ gain on a SBC.