Small Block & Big Block Chevy Specific - old school heads




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lifeisgood
07-27-2011, 04:51 PM
Ok guys I know jack Shit about old heads. I'm from the newer generation.
I have a 78z that's all original. I want 350-400whp.
A good cam I can pick out. What I plan on doing is taking the original engine and 4spd trans out and building a different combo. I wana save the original stuff 75k miles in it.
So I have a 70ish block as a foundation. I'm looking at heads...what the best bang for buck to reach my power goal?


3.8redbird
07-27-2011, 04:57 PM
Look for some dart iron eagles unless you want to spend the money on aluminum.

AFR, Dart, RHS, and TF all make good heads. I am going with TF 205 on my road race 383 with a procharger.

If you just have a block build a 383 since the price difference is a mute when you need everything.

350rwhp can be done with some vortec heads but then you need a correct intake.

lifeisgood
07-27-2011, 05:22 PM
what type of intake are we talking. im trying to spend the least amount of money.
im im not looking for an all out bruiser, just a fun ride to a cruise. you cant tell me lt1 heads are better than most cast?


3.8redbird
07-27-2011, 05:35 PM
what type of intake are we talking. im trying to spend the least amount of money.
im im not looking for an all out bruiser, just a fun ride to a cruise. you cant tell me lt1 heads are better than most cast?

LT1 heads wont work on a gen 1 sbc. they are reverse water flow.

On a budget look into some vortec heads. Get a nice .480-.500 left cam. A vortec intake (not bad on price) headers and a cam. Should put you in the upper 280-lower 300s depending where your at.

gen 1 sbc dont make power as easily as LS series.

I have a baby cam in my 383 and MAY crack 380rwhp with heads and whatnot

lifeisgood
07-27-2011, 06:21 PM
I know they won't fit.Lmao not with out machine work....wasn't trying to use the m just a comparison. I'll look into the vortec...what type of number on a flow bench?

Mattsv8
07-27-2011, 06:26 PM
For ur power level and no power adder the patriot alum heads for 895 pr at jegs would rock

3.8redbird
07-27-2011, 06:43 PM
I know they won't fit.Lmao not with out machine work....wasn't trying to use the m just a comparison. I'll look into the vortec...what type of number on a flow bench?

They are essentially truck heads so after .500 the flow sucks but up to there they can flow around 210cfm IIRC

For ur power level and no power adder the patriot alum heads for 895 pr at jegs would rock

I was thinking VERY budget but yes they would work very well if he was to go that route

1972_Z-28
07-27-2011, 06:54 PM
I'm a member here and there is tons of the exact info your looking for and lots of knowldgeable and helpful people. Sign up is free. Good to see the 2nd gens finally getting popular and some attention. GL with your build.

http://www.nastyz28.com/

lifeisgood
07-27-2011, 09:09 PM
Thanks for the input, those heads are exactly the kind thing I'm looking for. This thing isn't gona see any track time, and I'm only wanting a lil Umph to it.lol
I've got other cars for power.
And yeah the second gens are coming in. This one is a very nice car. For what I paid for it, I stole it.
Just wanted to keep the original parts for. Later restore

93Z2871805
07-27-2011, 09:25 PM
I'd go the vortec route if you want a driver, they'll have plenty of low end punch cruising around town. Good valve job and a back cut on the valves would be all you'd need. Don't go too crazy on the cam, as said above, no magic happening above .500, but you'll have quite a bit of low-mid grunt.

flyin
07-27-2011, 10:18 PM
World Products makes a Torquer S/R head that we have used in the past. It was a capable street head when coupled with an Edelbrock Performer RPM camshaft and a Victor Jr (2975). Went high 12's on motor and mid 11's on a 150 shot.
If you are going to use the stock shortblock, make sure to get the smallest combustion chamber you can. Stock compression ratios during the smog years were often in the 8.7:1 range.
I had a 1979 Z28 with a stock shortblock, stock heads, Edelbrock Performer RPM cam, Air-Gap Performer RPM intake and a 750 carb backed up with a 4 speed and 4.10 gear and the car went mid-13's all day long.

lifeisgood
07-27-2011, 10:23 PM
Yes the compression is terrible. And yes its just a driver. Something to play with for the time being
That's actually pretty impressive on the 79 z. I plan on doing a dif block though so I will change the compression to help things a lil.lol
That 750 carb wasn't too much for the engine? I figured u could run a smaller one for that power or am I wrong.
I'm an efi guy lol

93Z2871805
07-28-2011, 12:17 AM
Yes the compression is terrible. And yes its just a driver. Something to play with for the time being
That's actually pretty impressive on the 79 z. I plan on doing a dif block though so I will change the compression to help things a lil.lol
That 750 carb wasn't too much for the engine? I figured u could run a smaller one for that power or am I wrong.
I'm an efi guy lol

It's not really the power, more so the RPM of a given CID. There's a point when you don't have enough carb, but a warmed over 350 with a 650 or 700 carb wouldn't have an issue (That's a 350 spinning to 6k).

draggin97s10
07-28-2011, 11:10 AM
Do you mean LT-1 heads/ double humps, i have a old set of 202 fuelies id get rid of.

87silverbullet
07-28-2011, 02:51 PM
Do you mean LT-1 heads/ double humps, i have a old set of 202 fuelies id get rid of.

I'd tie a rope to those and throw them off the front of my boat as an anchor.

lifeisgood
07-28-2011, 03:58 PM
I was talking lt1 new style.
I was always told the dbl hump heads were good

blk/slvr02ss
07-28-2011, 04:52 PM
I'd tie a rope to those and throw them off the front of my boat as an anchor.

Funny but they r worth a lot to someone restoring there car to original so i would not b doing that !!!!!!

flyin
07-28-2011, 10:02 PM
I'd tie a rope to those and throw them off the front of my boat as an anchor.

You laugh at those...but before there was an after market for sbc heads, those were prized possessions! People have been deep in the 10's with those heads, don't forget your past!

Yes, a 750 carb was too much for my '79Z. It was the correct carb if I would have ran Edelbrocks Performer RPM heads, but not for stock heads. It was a little lazy down low, but pulled really nice up top. My little hyd flat tappet revved to 6600 many times lol. Even 7100 once by accident

tarpley1
08-01-2011, 05:47 PM
(flyin)"You laugh at those...but before there was an after market for sbc heads, those were prized possessions! People have been deep in the 10's with those heads, don't forget your past!"

AMEN to that,

i have good expierience with RHS, coutomer service, quick delivery,

take a look at there "pro action" series steel heads, good bang for you buck.

had a set of 220cc/2.02,1.60,(to large for your app.) steels on my 383 sbc. freakin monster.

poltergeist 02
08-07-2011, 11:28 PM
I'd tie a rope to those and throw them off the front of my boat as an anchor.

i think he should buy them. i had a set of those on my 80 malibu 355 sbc. it was pushing 350hp. sure there are better heads but if your looking for a budget build then they would be great for you.

87silverbullet
08-08-2011, 08:46 AM
i think he should buy them. i had a set of those on my 80 malibu 355 sbc. it was pushing 350hp. sure there are better heads but if your looking for a budget build then they would be great for you.

Depends on how budget he wants to go. If he gets the fuelie heads he would have to get them checked out so that costs money on top of the price of buying them. Then what if they need work? With today's cams more than likely they will need a spring change regardless.

You can buy a set of upgraded vortecs that can hold .550 lift for $500.00. Thats new springs already in that price. If the OP is into the nostalgia thing then get the fuelie heads, if not I say get the vortecs for the cheapie budget.

blk/slvr02ss
08-09-2011, 11:59 AM
Summit has there own set of Aluminum heads for $995 a set w/ everything !

87silverbullet
08-09-2011, 12:20 PM
Summit has there own set of Aluminum heads for $995 a set w/ everything !

For that price I would just add a 100 bucks and get the Trickflows.

Get the Patriots, 185cc runner for 795 for the set.

64nova_wagon
08-21-2011, 04:25 AM
Id suggest a nice set of pro comp aluminum heads for like 630 and a good 600 carb and 4bbl intake. Dont really need anything expensive do you? 64cc heads will do a lot

87silverbullet
08-21-2011, 09:38 AM
Id suggest a nice set of pro comp aluminum heads for like 630 and a good 600 carb and 4bbl intake. Dont really need anything expensive do you? 64cc heads will do a lot

That's cool and all but I would rather see the OP spend his money an American product, not Pro Comp. Plus their heads have been known to have an inferior casting.

64nova_wagon
08-21-2011, 12:54 PM
sOME OF THE OLD HEADS FROM 3 YEARS AGO DID. But when it comes to street performance and my check book, cheap quality wins.

LilJayV10
08-21-2011, 01:01 PM
Depends on how budget he wants to go. If he gets the fuelie heads he would have to get them checked out so that costs money on top of the price of buying them. Then what if they need work? With today's cams more than likely they will need a spring change regardless.

You can buy a set of upgraded vortecs that can hold .550 lift for $500.00. Thats new springs already in that price. If the OP is into the nostalgia thing then get the fuelie heads, if not I say get the vortecs for the cheapie budget.

This^^

OP are you rebuilding the entire engine or just doing heads/cam?

87silverbullet
08-21-2011, 03:04 PM
sOME OF THE OLD HEADS FROM 3 YEARS AGO DID. But when it comes to street performance and my check book, cheap quality wins.

Performance, cheap and quality don't go in the same sentence when it comes to Pro Comps.

The vortec's will damn near run door to door with the Pro Comps.

As far as a checkbook, I will GLADLY write out a bigger check for an American produced head from my checkbook:usa:, but thats me. You do what you want to do.

64nova_wagon
08-21-2011, 08:24 PM
Performance, cheap and quality don't go in the same sentence when it comes to Pro Comps.

The vortec's will damn near run door to door with the Pro Comps.

As far as a checkbook, I will GLADLY write out a bigger check for an American produced head from my checkbook:usa:, but thats me. You do what you want to do.

The intent was quality and cheap priced. And saves 50 lbs over iron vortecs.

87silverbullet
08-22-2011, 08:20 AM
The intent was quality and cheap priced. And saves 50 lbs over iron vortecs.

If you think they are a quality product then good for you. Cheap, yes very much so, but remember.....you get what you pay for.

It doesn't matter what they weigh though, the vortec's are cheaper than them and still run door to door with them.

Jim85IROC
08-25-2011, 08:45 AM
That's cool and all but I would rather see the OP spend his money an American product, not Pro Comp. Plus their heads have been known to have an inferior casting.
Those Patriots that you're hot for are the same chinese heads as the Pro Comps that you're against. Patriot does the same thing as the ebay guys... They get bare Pro Comp castings then put their own hardware on them. Only difference is that Patriot gets $200 more for theirs and they have an American-sounding name.

87silverbullet
08-25-2011, 01:38 PM
Those Patriots that you're hot for are the same chinese heads as the Pro Comps that you're against. Patriot does the same thing as the ebay guys... They get bare Pro Comp castings then put their own hardware on them. Only difference is that Patriot gets $200 more for theirs and they have an American-sounding name.

I mentioned Patriots one time and if you go back to that post I made, I mention the Trickflows first.

Patriot has to be doing something different to their heads because I have seen a set of Pro Comps do poorly compared to other SBC aluminum heads and Patriots run just a little bit behind the same set of heads.

Any proof that Patriot and Pro Comp use the same casting?

Edit: Patriot is casted overseas and finished here in Alabama. They are basically Alabama Cylinder Head. If you go to Alabama Cylinder Head's site and click on performance it links you to Patriot. Pro Comps on the other hand from what I can tell everything is done overseas.

Still doesn't make one better than the other.

64nova_wagon
08-26-2011, 01:35 PM
Those Patriots that you're hot for are the same chinese heads as the Pro Comps that you're against. Patriot does the same thing as the ebay guys... They get bare Pro Comp castings then put their own hardware on them. Only difference is that Patriot gets $200 more for theirs and they have an American-sounding name.

Ha.. about time someone helped me out.> Same thing. Just have to built them right.> Buy hey, you wanna speed 600 more silver! Your a good american..

87silverbullet
08-26-2011, 01:43 PM
Ha.. about time someone helped me out.> Same thing. Just have to built them right.> Buy hey, you wanna speed 600 more silver! Your a good american..

I sure am:usa:

3.8redbird
08-26-2011, 01:46 PM
Trickflow>procomp/patriot

64nova_wagon
08-28-2011, 04:19 AM
So, howa about some updates from the OP? Any luck in the search..