what heads do a lg4 have. it is in a 85 trans am 8th vin h

 

416 castings. Pretty good place to start, as far as factory heads go.

 

if done right, the 416s can flow some pretty amazing numbers. But you have to be willing to put alot of time and effort into them and hope to hell you dont mess up on the last port!!!

 

This heads are junk. Do not waist your money on them. Save your money and buy a set of after market aluminun heads. They are the best bang for the buck. A good set of cylinder heads will make more power than any junk production head, up to 80 more horse.

 

Depends upon your objectives.

A little more information regarding what's behind the question is in order before blanket statements like "junk" and "80 HP" are made.

 

Nobody that has a fast SBC use late model 305 or 350 production iron heads because to make them better you have to sink a lot of money in them and they stir no that great. That's why we use them as boat anchors. Trust me production heads are JUNK. I go to the track a lot and I never seen a fast SBC that use Junk 305 heads. You can dress up a monkey with silk but at the end you still have a Monkey... Don't wait your money on Junk 305 Heads!!!

 

Still don't know why the question was asked. If building a daily driver that will never see the track, not much sense in spending $1500 on aftermarket heads.

 

How much money do you have to spend on getting old heads clean and inspected? Plus a good valve job, maybe new valves, new valve guides, springs retainers and keepers. Maybe a mild port job? It will add up very quick. You can get a pair of Edelbrock performer heads from Jegs for just under a grand and this will make you feel like you have a new car.

 

Still don't know why the question was asked.

 

Locally I get it done for $100 a head plus parts.

 

Well.... I build Junk heads that flow as good as Edelbrock heads do for less than half the cost. total cost to me $460

How fast is your car with the expensive aftermarket heads?

 

You can get all that work done for only $100? Where do you live in China?
No even in Mexico dude. You are sooooooo funny.... If you think someone is going to belive that you are .

 

I could find a receipt to post if you like. The machining involved in rebuild a head is by no means complicated or labour intensive, so why do you think it should be expensive? Porting is labour intensive, but it's something that most people would prefer to do themselves.

 

So let me get this straight, you can build junk heads with new valve guides, new stainless 2.02 and 1.60 valves, new seals, three angle valve job on new seats, new doble Valve springs, new retainers and new keepers plus the the port job to make them flow as good as the Edelbrock ones for only $460. Yeah right and you are selling beach front property in Arizona right...

 

Still don't know why the question was asked. . .

 

Nope new Manley stainless 1.94x 1.60" valves, guides were ok, guide tops shortened for posi seals, three angle valve job, new comp 981springs, good used retainers and a resurface job and a pack of spring shims all for $460 tax inc.

Did the porting and drill and pin rocker studs myself. Flowtested by a buddy on a real flow bench at 232cfm@28". Never been to Arizona

 

Wow, someone needs to open their eyes...

As long as your local machine shop isnt a bunch of crooks you can build yourself a good set of heads out of the 416 castings, and all for alot less than a set of new heads!


Certinately though, if you want/need a real badazz set of heads go aftermarket. But most of the time you dont need a $2000 set of aftermarket heads to feed a mild little backyard buildup and a set of modified factory heads are more than adequate.

 

My machinest does the pair for $150 if you dissasemble them. And he is one of the best in town. But this is just NEW Mexico so I dunno.

 

First it was $100, now $150 for a rebuild on a pair of junk heads. Lets see, a minimum rebuild will have a three angle valve job on the intake and exhaust valves, plus if you did not know GM uses hardening process on the exhaust seats that only leaves a thin hard surface on them, so when you do a valve job the hard surfuce is gone. That leaves you with a soft exhaust seat, so it should be replaced. You also need new seals, new springs, new retainers and new keepers because we all know that the factory ones are weak and after 22 years they are definitely worn out. Oh, I forgot the valve guides. All that for $150. I don't know what type of rebuild you are talking about but it sounds like maybe you went to Mexico rather than New Mexico! Are you selling beachfront property over there, too?

 

I've done plenty of sets of 601s, 081s, 416s, and even a few 193 TBI heads. For a street engine, they beat a set of aftermarket heads hands down. A 305/350 does not need an expensive set of aftermarket heads if the RPMs are going to stay below 5,000-5,500 rpm.

Valve Jobs ARE cheap, SBC valve train parts are cheap, get over it.

 

Just because you do not pocess the intelligence to shop around does not mean no one else does. Not everyone wants aluminum heads either.

Just to put things in perspective. Things are ALWAYS cheaper when you supply your own parts.

A mind is like a parachute, works best when open.

Please consider the alternatives before you open your mouth and remove all doubt.

 

Correctomundo, for example the 1.94/1.60 valves that went into my 601s came from a cracked set of 993s off a C60 series chevy truck.

 

ask ??????? because my brother got a trans am for 350.00 and we was going to fix it up cheap.just to play with. nothing he really want to sink much money in.

 

416s would be fine to play with.

 

Last time I checked, Vortec Heads were a production head and didnt suck.

 

Well, the LG4 doesn't have Vortec heads, and the originator has come back to answer the question why he asked, and that is limited to "fix it up cheap.just to play with. nothing ... to sink much money in", so let's keep the discussion to that.

Understood? No arguments, no "my dad can beat up your dad" stuff.

 

Oh hell look at that I got flamed lmao. It was $150 for a full port job, why dont you look at what I was replying to. And ironically its $350 total so that makes it $200 for the rebuild. But dont take my word for it look him up and call him Edwards Engines in Albuquerque. That and I dont have any beachfront property but I do have a bridge I would like to sell you .