WHAT HEADS TO USE???
Thread Starter
Joined: Jan 2009
Posts: 539
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From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
what things where u reffering to that wont fit? i just need the oil pan gasket head gasket and intake manifold and distributor everything else i dont think i need...oh and the rear main seals.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I didn't say there was anything that wouldn't fit. I was trying to say you copied the information about the kit contents incorrectly.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
Oh ok then sorry mis read so the set should be what i need then? thanks alot again for all the help.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
So my build has made a turn for the best but now ill have alot more questions lol...i came across a set of L31 vortec heads.....i know i need the intake to match this but...these heads are ready to bolt on came off a running 1500 98 chevy truck will these be ok if i run them without any machine work?
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If you are using a stock factory cam, then you should be able to bolt them on. If you use any kind of aftermarket cam, it would be a good idea to change the springs. If you have more than around .45" lift, you should either use beehive springs & retainers, or get the top of the valve guides cut for more valve travel.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
yes im running the stock cam from this motor not changing anything on it...will these be a good set of heads to use the head number is 12558062?
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
Awesome thanks im just going to run these ones stock then and if i cam it later put a better set of springs.
Supreme Member

Joined: Nov 2008
Posts: 1,545
Likes: 10
From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: WHAT HEADS TO USE???
I was trying to find out how much trans fluid I needed to swap the trans filter, and the counter guy says "all the computer is giving me is the flexplate bolt torque, and I don't know what that even is."
I don't go to autozone anymore!
I don't go to autozone anymore!
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
Ha ha thats how it is here except there are alot of girls that work at autozone and always give me the wrong parts ha ha.................i have another question since i am using different heads what would be a good gasket kit to buy since i know the one i wanted to get will no longer work.....
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
sorry if i sound confused...but its cause im using a motor from a 75 truck so i dunno which head gaskets to use or if i can just buy the head gaskets for the car that the heads came off of...or i get confused when looking for a gasket set...just need a little help.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
It would be safe to use gaskets for the heads. I don't recall off the top of my head if they are different, but certainly no problem if you use Vortec head gaskets.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
well i kept one of the head gaskets that was on the head and put it on the block and everything looked good was just making sure i could use the gaskets and there was no difference in doing so.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
well i am going to get head gaskets now..im left with if i should use the push rods that came with the motor...or the push rods that came with the vortec heads...i measured them and it seems that the ones that came with the motor are longer than the ones that came with the heads but the ones that came with the heads are way cleaner would it be a problem if i use the ones that came with the heads? Like i said before they are shorter than the stock ones that came with the motor? will that be a problem or should i just use the ones that came with the motor when i got it?
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Short push rods are for roller lifters, and long push rods are for flat tappet lifters.
You need to use the correct push rods for the type of lifters you have.
You need to use the correct push rods for the type of lifters you have.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
Oh ok thats what i was looking for alright then ill just clean these ones up and use the correct ones thanks alot.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
Ok well im going to be putting the heads on sometime this week what is the torque specs for these?? And also i bought a set of head bolts from another member on here he said he put some heads on with them but never ran the motor with them on...so my question is what should i do...i know i need to put new sealent on the threads but whats a good kind to use...or should i just buy a new set of head bolts at auto zone or something?
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Clean the threads (with a wire wheel if you have one), use Teflon paste sealer on the threads.
SBC head bolts are not torque-to-yield, so they can be reused. Torque spec is same as any SBC with iron heads.
SBC head bolts are not torque-to-yield, so they can be reused. Torque spec is same as any SBC with iron heads.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
Where can i find some good teflon paste?? and if i dont got a wire wheel how can i clean the threads can i use a wire brush?
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
can i get this stuff at lowes or something?? also i posted another post but got no response how can i get the gasket off the block some of it is stuck pretty good and dont got cash to send it to get cleaned what can i use on it to get the majority of it off before i put the heads on thanks for any help.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
bump..had a question...well this is my set up so far its a 74 350 4 bolt main bored 30 over...im running vortec heads i wanted to know what a nice little cam would be the vortecs are stock 906 heads i dont want nothing too crazy as it will be my daily driver but just want something nice..any suggestions as i have read these heads dont accept much of a lift thats why im asking any help would be great thanks.
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From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
On Probation
Joined: Oct 2008
Posts: 6,319
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From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: WHAT HEADS TO USE???
bump..had a question...well this is my set up so far its a 74 350 4 bolt main bored 30 over...im running vortec heads i wanted to know what a nice little cam would be the vortecs are stock 906 heads i dont want nothing too crazy as it will be my daily driver but just want something nice..any suggestions as i have read these heads dont accept much of a lift thats why im asking any help would be great thanks.
Thread Starter
Joined: Jan 2009
Posts: 539
Likes: 0
From: Texas
Car: 1991 Trans Am GTA
Engine: 350 tpi
Transmission: 700R4
Axle/Gears: 3.42
Re: WHAT HEADS TO USE???
correction i made a mistake i dont got the 906 heads i got the 062 ones but i guess they are the same lift wise they dont accept alot of lift..yes the pistons are dished thanks..yeah i just want something decent since this is a budget build later on ill change everything i need to to support the higher lift thanks again.
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