Heads questions , 94 lt1.
03-20-2012, 09:50 AM
#1
Drifting
Thread Starter
Heads questions , 94 lt1.
Engine mods
LT4 hot cam kit
CSR Electric WaterPump
Exotic Muscle longtubes
SLP Claw Ramair
.
.
.
The car has rough idle , I don't know why.
My questions are :
Is it worth to buy heads ?
How much HP gain ?
What are good heads options I can go with my mods ?
I'm noob with heads , I don't understand how I can choose the right heads to anycar. I've read a lot but
LT4 hot cam kit
CSR Electric WaterPump
Exotic Muscle longtubes
SLP Claw Ramair
.
.
.
The car has rough idle , I don't know why.
My questions are :
Is it worth to buy heads ?
How much HP gain ?
What are good heads options I can go with my mods ?
I'm noob with heads , I don't understand how I can choose the right heads to anycar. I've read a lot but
03-20-2012, 10:09 AM
#2
Team Owner
Member Since: Oct 2004
Location: altered state
Posts: 81,242
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St. Jude Donor '05
Figure out your running problem before you throw any other parts at it.
AFR heads are good performers.
Some like stock heads worked over.
Prefer new stuff to worked over remachined stuff never had that stuff last very long.
AFR heads are good performers.
Some like stock heads worked over.
Prefer new stuff to worked over remachined stuff never had that stuff last very long.
03-20-2012, 10:12 AM
#3
Stock LT4 heads that are properly ported will perform nearly as well as the aftermarket heads and are generally a little cheaper. Reliability isn't an issue IF they are done right. If you get a set of heads from "bubbas cylinder head shop" you generally will get what you pay for.
Heads will improve performance of your car on the top end by quite a bit, probably push you close to the 400 rwhp mark. They will not, however, do anything to fix an underlying problem unless the current problem is specifically related to the cylinder heads currently, which isn't very likely.
When you say "rough" what exactly does that mean? The cam is going to make it have a lope at idle, this is normal. I assume this is a new problem, worse than just the normal cam lope.
Heads will improve performance of your car on the top end by quite a bit, probably push you close to the 400 rwhp mark. They will not, however, do anything to fix an underlying problem unless the current problem is specifically related to the cylinder heads currently, which isn't very likely.
When you say "rough" what exactly does that mean? The cam is going to make it have a lope at idle, this is normal. I assume this is a new problem, worse than just the normal cam lope.
03-20-2012, 09:57 PM
#5
Le Mans Master
Member Since: Jan 2006
Location: Woodstock Georgia
Posts: 6,564
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Stock LT4 heads that are properly ported will perform nearly as well as the aftermarket heads and are generally a little cheaper. Reliability isn't an issue IF they are done right. If you get a set of heads from "bubbas cylinder head shop" you generally will get what you pay for.
Heads will improve performance of your car on the top end by quite a bit, probably push you close to the 400 rwhp mark. They will not, however, do anything to fix an underlying problem unless the current problem is specifically related to the cylinder heads currently, which isn't very likely.
When you say "rough" what exactly does that mean? The cam is going to make it have a lope at idle, this is normal. I assume this is a new problem, worse than just the normal cam lope.
Heads will improve performance of your car on the top end by quite a bit, probably push you close to the 400 rwhp mark. They will not, however, do anything to fix an underlying problem unless the current problem is specifically related to the cylinder heads currently, which isn't very likely.
When you say "rough" what exactly does that mean? The cam is going to make it have a lope at idle, this is normal. I assume this is a new problem, worse than just the normal cam lope.
03-20-2012, 11:07 PM
#6
Drifting
Thread Starter
I'll check if that's normal or not.
when you say AFR heads , there are many AFR heads !!!
Stock LT4 heads that are properly ported will perform nearly as well as the aftermarket heads and are generally a little cheaper. Reliability isn't an issue IF they are done right. If you get a set of heads from "bubbas cylinder head shop" you generally will get what you pay for.
Heads will improve performance of your car on the top end by quite a bit, probably push you close to the 400 rwhp mark. They will not, however, do anything to fix an underlying problem unless the current problem is specifically related to the cylinder heads currently, which isn't very likely.
When you say "rough" what exactly does that mean? The cam is going to make it have a lope at idle, this is normal. I assume this is a new problem, worse than just the normal cam lope.
Heads will improve performance of your car on the top end by quite a bit, probably push you close to the 400 rwhp mark. They will not, however, do anything to fix an underlying problem unless the current problem is specifically related to the cylinder heads currently, which isn't very likely.
When you say "rough" what exactly does that mean? The cam is going to make it have a lope at idle, this is normal. I assume this is a new problem, worse than just the normal cam lope.
Maybe I need to record a video of the car idling
Yes.
