The right heads?
Thread Starter
Race Director
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From: Sunshine Coast, Queensland, Australia
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I guess I was hoping for more than one opinion. As the factory manual states 8.5-1 Stock compression Would like to know if any of you have tryed "Patriot Performance" heads. They have a very attractive price point. But....
Last edited by 4-vettes; May 10, 2008 at 09:44 PM.
Pro
Joined: Jun 2004
Posts: 700
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From: Lantana TX
I did do a fair bit of research before I posted in the first place. Could not seem to find a reliable source for the compression ratio's. Thought I would ask, surely someone on this forum would know small block chevy compression with different heads.
I can Google all night if I want to. Much nicer talking with real people.
I can Google all night if I want to. Much nicer talking with real people.
As an example, I think most are thinking about a few of your comments.."I did a fair bit or reasearch before I posted in the first place."
It's kinda like saying I did research on carb's, but never heard of Holley, or I need some tires for the track, biut never heard of Mickey Thompson's before.
I think a few were just thrown back a little.
A great sight to do some research on, wttp://www.hotrodders.com/kb/engine
Have a great night!
Thread Starter
Race Director
Joined: Nov 2006
Posts: 13,199
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
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Cruise-In VIII Veteran
I see Jegs has got a 195 intake runner, AFR heads with 65cc chambers for 1,440.00 Sounds better. I would like to here from the man who has had them on his car.. I can read all the ad's. but they all claim to be the best.
Racer
Joined: Feb 2007
Posts: 307
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From: liberty mo
Here is another site for some good info,and somebody already suggested Brodix IK 180 heads,i have the IK200 heads. If you want quality you cant go wrong with Brodix or AFR,but they are not cheap.
http://www.brodix.com/heads/ironkiller.html
I would suggest the IK 180's for your application,the 200's would be too much.
http://www.brodix.com/heads/ironkiller.html
I would suggest the IK 180's for your application,the 200's would be too much.
Burning Brakes
Joined: Nov 2006
Posts: 954
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2022 C3 of the Year Finalist - Modified
I'm thinking to boost up my 72 base 350ci to 350hp - 400hp CR 9.7:1 and I will go with those summit parts:
cam#CRN-967601 ~$115
Alu' Brodix heads# BRO-1021004 ~$1000
Edelbrock intake# EDL-2101 ~$125
Rocker arm# CCA-1412-16 ~$150
Engine Rebuild Kits# FEM-MHP127-300 ~$400
Avner
cam#CRN-967601 ~$115
Alu' Brodix heads# BRO-1021004 ~$1000
Edelbrock intake# EDL-2101 ~$125
Rocker arm# CCA-1412-16 ~$150
Engine Rebuild Kits# FEM-MHP127-300 ~$400
Avner
Last edited by avner; May 11, 2008 at 02:02 AM.
Pro
Joined: Jun 2004
Posts: 700
Likes: 0
From: Lantana TX
to much for your set up 180cc would be better. You might also look into the Edelbrock performer RPM package....parts are pre selected and match well together, which is very important.jegs offers it.
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Thread Starter
Race Director
Joined: Nov 2006
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
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Cruise-In VIII Veteran
Thanks much for all the tip's and web sites. Will look at these sites closely. Anyone else?
Race Director
Joined: Mar 2001
Posts: 11,322
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From: Living in the Hartland
I think you getting responses like that because of the type of questions you asking.
As an example, I think most are thinking about a few of your comments.."I did a fair bit or reasearch before I posted in the first place."
It's kinda like saying I did research on carb's, but never heard of Holley, or I need some tires for the track, biut never heard of Mickey Thompson's before.
I think a few were just thrown back a little.
A great sight to do some research on, wttp://www.hotrodders.com/kb/engine
Have a great night!
As an example, I think most are thinking about a few of your comments.."I did a fair bit or reasearch before I posted in the first place."
It's kinda like saying I did research on carb's, but never heard of Holley, or I need some tires for the track, biut never heard of Mickey Thompson's before.
I think a few were just thrown back a little.
A great sight to do some research on, wttp://www.hotrodders.com/kb/engine
Have a great night!
Was not trying to be an arz with my first post (maybe a little on the second). You will get a lot more info if you pinpoint you question indicating you have done some homework. 'What are AFR Heads' does not do this. It is a free contry so approach it anyway you like.
Thread Starter
Race Director
Joined: Nov 2006
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
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In all honesty: I do know a fair bit about engines .. I would rather come off a bit unschooled so as to get more honest opinions. I can read all the hype from all the companies as well. However I have learned very well from running Motorcycles on the dyno for many years now.. That most companies do not deliver the horsepower they claim. Clearly some are better than others. As I said in the beginning of this.. My budget is not endless. I would like to have a fairly hot street car. Just looking for the best bang for the buck. All the experience of all of you out there could help me.
Pro
Joined: Jun 2004
Posts: 700
Likes: 0
From: Lantana TX
In all honesty: I do know a fair bit about engines .. I would rather come off a bit unschooled so as to get more honest opinions. I can read all the hype from all the companies as well. However I have learned very well from running Motorcycles on the dyno for many years now.. That most companies do not deliver the horsepower they claim. Clearly some are better than others. As I said in the beginning of this.. My budget is not endless. I would like to have a fairly hot street car. Just looking for the best bang for the buck. All the experience of all of you out there could help me.
for 3K you can't beat it. AFR heads alone are gonna cost you $1500
www.YearOne.com 400 horse and 400 TQ nice!!!
Instructor
Joined: Dec 2006
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From: Oxnard/San Luis Obispo CA
(I think the angle plugs aren't available on the 180s also)
Race Director
Joined: May 2005
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From: Millington Illinois
St. Jude Donor '08-'09
I have the straight plug AFR 195 competition ported. The plug wires clear my Hooker headers with no interference. I have heard the angle plugs require dimpling the headers.
Burning Brakes
Joined: May 2004
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From: belle plaine ks
You are familiar with dynos aren't you? Check these motors out and you might find something to suit you.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
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From: Unreconstructed, South Carolina
An ideal choice for warmed-over street L48/dish is a pair of L98 aka ZZ4 heads GM p/n 12556463 ... they're aluminum with 58cc chamber ... great match to L48's dished piston. They're quite affordable @ under $1K/pr brand new. They're well made; Not offshore. I just sold a real nice used pr of ZZ4 heads. Their durability's proven by GM's continued use for about 20 years to this day.
-also- if you're willing to swap pistons? keep your heads & install sealed power aka speed pro p/n H618CP hypereutectic pistons that have a small dome with dome volume = + 3.5cc ... with a fp p/n 1094 gasket you'd have a great 0.040" quench @ about 9.7:1 scr w/ your OE heads in an OE block. Those pistons often on fleabay for < $200.
-also- if you're willing to swap pistons? keep your heads & install sealed power aka speed pro p/n H618CP hypereutectic pistons that have a small dome with dome volume = + 3.5cc ... with a fp p/n 1094 gasket you'd have a great 0.040" quench @ about 9.7:1 scr w/ your OE heads in an OE block. Those pistons often on fleabay for < $200.
Last edited by jackson; May 11, 2008 at 07:02 PM.
Melting Slicks
Joined: Jul 2006
Posts: 2,288
Likes: 489
From: Salmon Arm, BC
In my opinion, I might try the castiron vortec heads 64 cc from GM. there cheap ($500/set) and provide excellent torque and good power below 6000 rpm. Unfortunatly you would also have to get a matching vortec intake,but all can be had for $750. The compression ratio will be at 9.5/1, well within the range of pump gas. You can move the compression ratio around by 0.5 by using a thick (.040) or thin (.015) head gasget. If I were you I'd look at a more modern design of a camshaft, all of the major manufacturers have great websites to help you choose the right cam. You will be leaving alot on the table with the 350/327 cam. Your carb is perfect for the street, don't let anyone tell you otherwise.
If you have to go with the aluminum heads I'd put on the AFR 180's with 64cc these will give you more topend than the vortecs, but as a "street machine" are kinda unnecessary. Way cool on the looks though!!
Good Luck
If you have to go with the aluminum heads I'd put on the AFR 180's with 64cc these will give you more topend than the vortecs, but as a "street machine" are kinda unnecessary. Way cool on the looks though!!
Good Luck
Thread Starter
Race Director
Joined: Nov 2006
Posts: 13,199
Likes: 7,796
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
some very interestimg idea's.. Thanks much. Now I have a lot of thinking to do.
