Do you have a website or any literature about your company?

Didn't mean to steal the thread---- sorry.

Dave

 

Is that for the oil return holes or the redrill of the holes in the intake and building up behind them so they won't break or strip or the filling in of the crossover pasages or the accessory bolt holes in front or the water crossover in the rear or "D" all of the above.

 

D. All of the above. They are ready to bolt on.

 

I WILL keep that in mind,I have been paying a lot more than that and have to do a set shortly.

 

which make of heads is easier to convert or better to convert ....or doesn't it matter

 

Prety much for any 23* SBC head conversion it will run $350-500 for the conversion. Throwing porting costs and other machine costs is irelevant because your going to have spend money on that even if you stick with a LTx head, GM or otherwise, so you really cant add that cost in on the price. Getting the intake done will more than likley be just about as much as for the head conversion but if you have SBC heads why stick to a LTx manifold? Convert a good carb manifold over to F.I. LME here in Houston does the conversion all the time, its becoming a extremley popular. The gains are very worth it over an LTx based head. You cant be centergistic on flow numbers but theres a lot of R&D in SBC 23* heads as many classes of racing are restricted to that particular angle. Any case if you got the green to make power, great option, I like it a helluva alot more than the AFR route.

 

3 steps:

1- buy the heads and matching intake you want
2- send heads to airflow development or Mike Stark at CFM Performance for the reverse-cool conversion (both charge about the same). I think Bret at BRE (SStrokerAce) will convert them also, have to ask him and see.
3- send the intake to Force EFI to convert it to EFI (unless you can drill/weld in the injector bosses yourself and set up the rail assembly). TB, elbow, etc will probably be needed also.

Voila, you have a gen1 top end to put on your LT1. The next steps AFA the bottom end are obvious... make sure you have the pistons and/or rods to match. I've got myself so torn between the possibilities it's driving me nuts... turbo LT1, turbo LT1 with brodix 18X heads, or nitrous'd 427/434 SBC with some crazy heads (GM 15*, pro action 14*, GM or brodix splayed valve heads... the list goes on and on). SDPC has bare GM 15* heads for ~$2,200/set... very tempting

 

I posted on this topic about 2 weeks ago...I have a killer set of heads that I want converted.
airflowdevelop- I would like to do the conversion, but I just want to know alittle bit more about the process. What do you fill the holes with, on a iron head....and you havent had any problems with things expanding at different rates? Im all about sending you my heads ASAP. The are iron sportsman II fully ported.

Fast caddie- Sound like you are going in the right direction, But if I were you, I would start looking into getting some used winston cup heads. There is NO ONE that is going to port heads better then a Nascar team. They are making almost 1000hp with restrictions. The 18degree heads are know to make 850. I have a set of mid 90s 20degree cheater heads....and they are making 750hp on a 377. Sounds like you are going all out.....spend alittle extra $$$ and you wont be dissapointed.

 

Yea i've been through all the possibilities... the used stuff will be cheaper and ready to go. But for power, the canted valve and/or splayed valve heads will make more power than even SB2.2s. Do a username search for "SStrokerAce" in the advanced tech section and you should come across a thread a month or two ago where he and a few others were discussing these heads.

Well, just give me a minute and i'll dig it up and post it here.....

[edit] here's a VERY good thread that some of you might be interested in reading:

http://web.camaross.com/forums/showthread.php?t=188680

Still looking for the other thread...

Here it is:

http://web.camaross.com/forums/showthread.php?t=309570

IMO, these are amongst top 10 best threads ever on this site.

 

Unless you already have a set of good 23º heads in your possession, I wouldn't bother doing a 23º head conversion. You can get anything you need from AFR ready to go. A 355 with AFR 215RR heads I happen to be very familiar with, put down 562 hp at the flywheel with a hydraulic roller cam. Should be just short of 500 rwhp with a little tweaking. So the question comes to... how much power are you looking to make and... is it worth it to convert a set of heads for your goal?

You could probably get another 20+ hp out of the above combination with a bigger cam (hyd or solid). Anything above that and I'd just stop playing around and convert a race head, go solid roller and hang on.

-Mindgame

 

Mindgame, nice to see you around again!

I concur with MG's advice. I went the opposite way (I skimped on the heads) to go fast with my car: stock heads, large cam, cubes, lightweight, 1 7/8 headers, monblade, etc. IOW, If I had to do it all over I would go with more common boltons and spend the $ on some 215RRs. That, or I'd go to the dark side (positive vacuum ).

Ryan

 

Good to be back Ryan, thanks.

Been in and out of Israel for the past few months and yeah... you only need leave this country for a short while to really appreciate being "back".

-Mindgame

 

Mindgame, a quick question... the 215 RRs come bolt-on ready now for the LT1s? I remember Jim LaBreck had to have his converted to reverse-cool before throwing them on his 396. Those are some pretty good heads... I have one of his engine dyno graphs he sent me on my computer with 647 crank hp at peak At 13% drivetrain loss that's easily 550rwhp on pump gas.

I hear you may be selling your 383 for a new engine next year... i'd buy that damn thing from you if i wasn't still in college lol

 

Yes, thanks to our pal Jim you can get the 215's ready to go. Just give AFR a call and tell them what you want.

The engine may be sold. Chuck R over at PRED will get 1st shot at the heads as that was the deal I made with him when he did all the work to them. The intake would be pretty much useless without the heads so that may go with them too. The rest may be parted up or sold outright. Just not sure yet.

School can be tough monetary-wise. Heck, an old rusted out 4dr Falcon was my college hot-rod, so you're alot better off than I was.

Hang in there.

-Mindgame