Cheap, good flowing heads for a 75 vette?
Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,541
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From: Chicago
Cheap, good flowing heads for a 75 vette?
What heads and cam can I get to reach around 300hp at the engine (or as close to that as possible). I will have headers and an eddlebrock intake manifold. And about how much would these heads/cam cost.
Thanks
PS What kind of carb should I get?
Thanks
PS What kind of carb should I get?
Burning Brakes
Joined: Mar 2001
Posts: 1,211
Likes: 5
From: Nashville TN
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
Either the Dart or the World products cast iron heads are durable, flow well, reasonably priced and are compatible with most existing hi-po hardware.
Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,541
Likes: 0
From: Chicago
Re: Cheap, good flowing heads for a 75 vette? (dman535)
Is about 300hp on a 75 L-48 possible with replacing heads/cam/intake/carb? And where could I find those heads that you mentioned. Do you know if they have a website? Or would I order through jegs, summit, etc?
Thanks :yesnod:
Thanks :yesnod:
Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,541
Likes: 0
From: Chicago
Re: Cheap, good flowing heads for a 75 vette? (QuickVet)
you want cheap, get the vortec or zz4
:confused: :(
Melting Slicks
Joined: May 2002
Posts: 2,508
Likes: 0
From: Wisconsin
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
Get the Vortec heads, have them ported, and put then Edlebrock intake for them on it. Get a drop base airfilter to make sure it fits under the hood.
Melting Slicks
Joined: Dec 2001
Posts: 2,025
Likes: 1
From: Billings MT
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
Well here's what i did, and it should be a strong runner (350 hp)
GM 041 64cc Closed Chamber Heads with LT1 springs, polished, light port work: $350
Comp Cam XE268 Cam and Lifters: $161
Crane Energizer 1.50:1 Aluminum Roller Rockers: $161
Edelbrock Performer EPS Manifold : $137
So for about $800 it should be a pretty screaming setup.
:cool: :cheers:
GM 041 64cc Closed Chamber Heads with LT1 springs, polished, light port work: $350
Comp Cam XE268 Cam and Lifters: $161
Crane Energizer 1.50:1 Aluminum Roller Rockers: $161
Edelbrock Performer EPS Manifold : $137
So for about $800 it should be a pretty screaming setup.
:cool: :cheers:
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Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,541
Likes: 0
From: Chicago
Re: Cheap, good flowing heads for a 75 vette? (VETDRMS)
WoW, that sounds awesome! 800 bucks for 350hp. Are heads for these cars really that cheap? or did you get them used for a deal? The heads that I recently bought for my 98 vette were almost $3,500.00! Where can I order those heads from? I'm ready to buy :yesnod:
Instructor
Joined: May 1999
Posts: 113
Likes: 0
From: Hudson NH
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
Get the Vortecs, replace the stock springs.....you'll be very happy. I did mine for about $850 and that included the Edelbrock manifold and all the gaskets and bolts. Best hp/$ upgrade I've made to the beast.
[Modified by jrh74cp, 11:22 PM 7/14/2002]
[Modified by jrh74cp, 11:22 PM 7/14/2002]
Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,541
Likes: 0
From: Chicago
Re: Cheap, good flowing heads for a 75 vette? (jrh74cp)
Get the Vortecs, replace the stock springs.....you'll be very happy. I did mine for about $850 and that included the Edelbrock manifold and all the gaskets and bolts. Best hp/$ upgrade I've made to the beast.
[Modified by jrh74cp, 11:22 PM 7/14/2002]
[Modified by jrh74cp, 11:22 PM 7/14/2002]
Drifting
Joined: Nov 2000
Posts: 1,428
Likes: 0
Re: Cheap, good flowing heads for a 75 vette? (jrh74cp)
A DUMB Question....since GM recommends it, dont you also have to purchase a Vortec Intake Manifold at an additional Cost? Why not go with a set of Street/Replacement Torquers ($750.00 @ Summit), a Weiand Action Plus Dual Plane Intake for abt $88.00, and a good street cam of your choice? Pleez see my sig b4 deciding....I am desk dynoing 275 HP w/o new heads and headers..... Cam and lifters abt 130 bucks, dualplane intake at $88.00, chambered pipes at 299.99 from Mid America. Do ALL you want to the motor of your choice, but if you do not put on a true dual exhaust system of some kind, your motor will NEVER realize its potential, and LOTS of folks here will tell ya that for sure.....GOOD LUCKl
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
If you are going to spend $850 you might as well buy a set of aluminum Trick flow heads for $939 from summit and get 10% off if you mention the 10% discount. That is less than $900 and they flow better then ported vortech and you can run higher compression since they are aluminum. 10/1 on 93 oct no problem. Just a thought.
Do a search in the archives about the gm crate engines their is a link to a build up one mag did with the gm univeral crate engine and they recommend buying trick flows instead of spending the money on ported vortechs.
Do a search in the archives about the gm crate engines their is a link to a build up one mag did with the gm univeral crate engine and they recommend buying trick flows instead of spending the money on ported vortechs.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
Nassy, it depends on shipping, but I have a set of ported/polished 993 heads, in good clean condition, came off my car, wish I never bothered with the Edel heads I have there now, not worth the bux for the change....but all I want is 300 bux for them, ready to dust off and bolt on....work fine with a .520 lift cam....
GENE
GENE
Instructor
Joined: May 1999
Posts: 113
Likes: 0
From: Hudson NH
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
Nassy,
I got my parts from Scoggin-Dickey Part Center. Here's the link: http://www.sdpc2000.com/cart.asp?act...d=277&pid=1120
I paid $699 plus shipping back in December, now going for $729. You can also check other Goodwrench parts distributors. I hear some of them are selling the kit as well.
A set of LT-1 springs and I was ready to go. Got a set of center bolt valve covers and the drop base Edelbrock air filter from Ebay at decent prices. I already had the cam in the car so that didn't need to be done.
So for about $850 into the car for everything, including all the odds and ends (I replaced the timing chain and gears as well) I'm pretty happy with what I got. Running right around 300 hp now, which is good enough for me.
Good luck. :chevy
I got my parts from Scoggin-Dickey Part Center. Here's the link: http://www.sdpc2000.com/cart.asp?act...d=277&pid=1120
I paid $699 plus shipping back in December, now going for $729. You can also check other Goodwrench parts distributors. I hear some of them are selling the kit as well.
A set of LT-1 springs and I was ready to go. Got a set of center bolt valve covers and the drop base Edelbrock air filter from Ebay at decent prices. I already had the cam in the car so that didn't need to be done.
So for about $850 into the car for everything, including all the odds and ends (I replaced the timing chain and gears as well) I'm pretty happy with what I got. Running right around 300 hp now, which is good enough for me.
Good luck. :chevy
Team Owner
Joined: Jun 2001
Posts: 43,136
Likes: 155
From: Thomson Georgia
Re: Cheap, good flowing heads for a 75 vette? (VETDRMS)
[QUOTE]Well here's what i did, and it should be a strong runner (350 hp)
GM 041 64cc Closed Chamber Heads with LT1 springs, polished, light port work: $350
Yeah the 041's are a great set of heads
:yesnod:
GM 041 64cc Closed Chamber Heads with LT1 springs, polished, light port work: $350
Yeah the 041's are a great set of heads
:yesnod:
Le Mans Master
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Re: Cheap, good flowing heads for a 75 vette? (NassyVette)
A mildly ported, polished set of OEM 993 cast iron castings with 2.02/1.60 valves (or even 882's if you have them) along with a Comp Cams 268H High Energy cam, Edelbrock Performer intake, headers, duals and hypereutectic flat-top pistons will easily produce 300hp at the flywheel. I had this combo (except for the porting/polishing) on my '80 L48 before moving up to the Darts and easily produced 190rwhp. Assuming 30% parasitic losses in the drivetrain and with accessories, it was probably right at 300 flywheel horsepower (net hp).
Now, if you are shooting for 350-400hp at the flywheel, I'd propose moving to the Dart Iron Eagle, World Product or Airflow heads.
Correction: I was getting 190rwhp with cast iron exhaust manifolds and 'cobbled' dual exhaust. I added the headers and a fresh dual exhaust with the Dart Iron Eagles. Have yet to dyno flog it since. Anticipating 250-300rwhp with this change...
[Modified by TedH, 11:08 AM 7/15/2002]
Now, if you are shooting for 350-400hp at the flywheel, I'd propose moving to the Dart Iron Eagle, World Product or Airflow heads.
Correction: I was getting 190rwhp with cast iron exhaust manifolds and 'cobbled' dual exhaust. I added the headers and a fresh dual exhaust with the Dart Iron Eagles. Have yet to dyno flog it since. Anticipating 250-300rwhp with this change...
[Modified by TedH, 11:08 AM 7/15/2002]
