Help With Head Choice
Thread Starter
TECH Apprentice
Joined: May 2005
Posts: 325
Likes: 0
From: Cali & Nevada
Help With Head Choice i have a 350 small block
pete jackson gear drive
292 comp cam
RPM air gap manifold
long tube headers
600cfm carter carb
HEI setup
turbo 400 tci transmission
3.73 gears
3000 stall converter
i was looking for a set of vortec heads but i cant seem to find any
so i was thinking 2nd option camel hump heads
some questions i had though was if i run the vortec heads the only thing that needs to be changed is the manifold right? they can use the same head gaskets and same headers?
how much more power will the vortec heads make over the camel hump heads
and yes i know either way i have to have the valve springs change to work with the cam i have
pete jackson gear drive
292 comp cam
RPM air gap manifold
long tube headers
600cfm carter carb
HEI setup
turbo 400 tci transmission
3.73 gears
3000 stall converter
i was looking for a set of vortec heads but i cant seem to find any
so i was thinking 2nd option camel hump heads
some questions i had though was if i run the vortec heads the only thing that needs to be changed is the manifold right? they can use the same head gaskets and same headers?
how much more power will the vortec heads make over the camel hump heads
and yes i know either way i have to have the valve springs change to work with the cam i have
Launching!
Joined: Nov 2009
Posts: 245
Likes: 1
From: Illinois
Get the Vortec heads, yes you will have to get a Vortec manifold. Also, check the header flange to see if it matches the exhaust ports on the Vortec heads.
Seems that you can get about 400-420 horsepower from that setup.
Seems that you can get about 400-420 horsepower from that setup.
Launching!
Joined: Oct 2006
Posts: 289
Likes: 0
If you are pulling a set of Vortecs from the JY, you will need to have a valve job done, guides cut down for the lift, new springs and retainers along with the new manifold. I'd add up that cost and weigh it against a new set of aluminum (or cast iron) heads from the aftermarket.
Leave the double hump heads for the class racers who are forced to use them. They can flow quite well, but the effort and $ adds up quickly.
Leave the double hump heads for the class racers who are forced to use them. They can flow quite well, but the effort and $ adds up quickly.
Thread Starter
TECH Apprentice
Joined: May 2005
Posts: 325
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From: Cali & Nevada
yeah they do have them with valve springs already done but they are 400 dollars each i was hoping to get a set of heads on my car for 400 for the pair its gonna be kinda hard to come up with 800 dollars with no job ahhh this sucks!
Thread Starter
TECH Apprentice
Joined: May 2005
Posts: 325
Likes: 0
From: Cali & Nevada
ok so im going with a set of vortec heads that are already done 800 for the pair brand new what rocker arms should i use im not looking to spend a ton of money on the rocker arms and will regular head gaskets work on the vortec heads? is there anything else i need to worry about i already have my manifold
TECH Enthusiast
Joined: Dec 2005
Posts: 576
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the head gasket will work fine with any sbc head unless it was 400ci and if you cant buy vortec heads get L98 aluminum heads the air gap you got will need some machining for the center bolts just a little bit thou got them in my wrangler and loved them
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Thread Starter
TECH Apprentice
Joined: May 2005
Posts: 325
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From: Cali & Nevada
ok good glad the head gaskets will work...im just going to get the vortec heads they are $380 each brand new valves are cut down 550 lift springs etc i just need to know what rockers to run with them
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Verdad Gallardo TECH Enthusiast
Joined: Dec 2005
Posts: 576
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you can run any rockers with them if it has pushrod guide you need non self alignment rockers and if it dont you need self alignment rockers but a friend of mine told me it doesnt matter you wont rev it pass 6800
Thread Starter
TECH Apprentice
Joined: May 2005
Posts: 325
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From: Cali & Nevada
ok cool im just going to go with some roller tip rockers then should i go with 1.5 or 1.6 ? im not sure if im able to run 1.6 if anyone knows if i can or not that would help me out a lot and also what the lift would be with a 1.6
If you have guide plates which I doubt on iron vortecs, you can use a regular rocker. All vortec headed motors I worked on I used self-aligning rockers. You need to stop listenening to your friend.More like in the 11's if you hook well and the car is light.
Thread Starter
TECH Apprentice
Joined: May 2005
Posts: 325
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From: Cali & Nevada
im not sure if im going to be able to afford full roller rockers right now but well see i guess
11's would be nice but im not going to get my hopes up the car is a 1966 el camino so its most likely around 3500 + the only thing thats lighter then stock are pro star wheels and fiberglass inner fenders haha
11's would be nice but im not going to get my hopes up the car is a 1966 el camino so its most likely around 3500 + the only thing thats lighter then stock are pro star wheels and fiberglass inner fenders haha
TECH Addict
Joined: Jan 2002
Posts: 2,950
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From: Magee MS
I'm not sure that the hp numbers you have been told are going to be as close as your hoping... I'de say a little closer to 350. the vortec heads are great heads for a budget build but they really need a good port job to shine. Its not hard to make 400 hp w/ vortec heads though. I've seen some make 500 w/ vortec heads and 2 barrel carbs(dirt track engines)
but saying a comp 292 camshaft doesnt give enough info... you can get a couple of different comp 292 cams. is it a hydraulic or solid? which grind? comp has about 5 different grinds of camshafts.
but saying a comp 292 camshaft doesnt give enough info... you can get a couple of different comp 292 cams. is it a hydraulic or solid? which grind? comp has about 5 different grinds of camshafts.
TECH Enthusiast
Joined: Dec 2005
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not every country got the same set up in my country they just remove the guide plates and put large pushrods and they didnt even bend one pushrod or broke a rocker but putting guide plates back is safe side its like the saying "better safe than sorry"