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  #31 (permalink)  
Old 09-06-2013, 07:28 AM
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Wrench Turner
 
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wondering if the stock injectors will be OK,or,if he may need to go up a size,or,2?

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  #32 (permalink)  
Old 09-06-2013, 07:57 AM
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The stock GM LT1 cylinder head can be hand ported to 240cfm ++. Best with larger 2.00 x 1.56 LT4 style valves added too. Can be done on the stock valve seat inserts. with just a valve job.
The stock LT1 casting has modest flow in stock form but gets much better with hand porting
and the larger LT4 size valves.
Any thing that flows in the 230cfm range is good and miles ahead of the stock as cast.
You can port the intake too.

You want at least the same cr as stock LT1 or a little higher if you cam the motor up for power.
But...keep the real measured cr at just under 11:1. Ya it latters.
The stock LT1 camshaft is pretty tame. If you cam it up you will need to rev it up (gears)

http://www.lingenfelter.com LT1 motor tech mods and parts.

Last edited by F-BIRD'88; 09-06-2013 at 08:24 AM.
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  #33 (permalink)  
Old 09-06-2013, 08:00 AM
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he has the short pin hgt pistons,so,he's lost some amount of CR to begin with.
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  #34 (permalink)  
Old 09-06-2013, 09:41 AM
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The guy that AP mentioned @ Headbytes seems like he has some good stuff goin on.I would give him a call if you wanna rework your stockers.He's not very far from me,so,I'm definitely gonna give him a call.Decent prices if he does what he says.Shipping will prolly be the deal breaker tho.IDK if you'll save anything by the time you ship a set of heads both ways.
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Old 09-06-2013, 09:58 AM
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I think if it were me,I'd be asking the rebuilder about swapping the pistons out for the correct ones.
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  #36 (permalink)  
Old 09-06-2013, 04:15 PM
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Quote:
Originally Posted by ap72 View Post
No limits on the cam. I'd send them to headbytes to get them redone, best value for the money.

Headbytes.com

You can try local too but I don't know what the prices will be.
I've sent a request for info to heasbytes. Also, checking local shops.
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Old 09-06-2013, 05:09 PM
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Lingenfelter offers Full CNC porting and preparation/rebuilding to your stock usable LT-1 cylinder heads.
They do the intake manifold too. They offer cams and injectors and can tell you exactly what the result will be because all their LT1 LT4 combos are dyno and track tested. If you build it to specification.
The details matter. You have to send them a set of usable LT-1 cylinder heads and a usable intake manifold if you want that ported too.

Call them for details
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  #38 (permalink)  
Old 09-06-2013, 06:27 PM
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Lloyd Elliot does too. Very well known lt1 guy. Not cheap though.
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Old 09-06-2013, 06:45 PM
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Looks like the guy @ Headbytes likes 305 heads too.LOL.
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Old 09-07-2013, 05:50 AM
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Originally Posted by jokerZ71 View Post
The guy that AP mentioned @ Headbytes seems like he has some good stuff goin on.I would give him a call if you wanna rework your stockers.He's not very far from me,so,I'm definitely gonna give him a call.Decent prices if he does what he says.Shipping will prolly be the deal breaker tho.IDK if you'll save anything by the time you ship a set of heads both ways.
Got a friend that lives in Cookville, Tn. so one way shipping if I visit him and drop off or pick up.
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Old 09-07-2013, 05:59 AM
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Originally Posted by F-BIRD'88 View Post
Lingenfelter offers Full CNC porting and preparation/rebuilding to your stock usable LT-1 cylinder heads.
They do the intake manifold too. They offer cams and injectors and can tell you exactly what the result will be because all their LT1 LT4 combos are dyno and track tested. If you build it to specification.
The details matter. You have to send them a set of usable LT-1 cylinder heads and a usable intake manifold if you want that ported too.

Call them for details
Yea, got a buddy that took his 57 chevy to Ligenfelter, back before he passed. Got over 700 HP at rear wheels, out of his bbc 502. I went with him to see the car on dyno. Really nice guys there also. Bill was over 12,000!
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  #42 (permalink)  
Old 09-07-2013, 09:25 AM
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I talked to a fella that had some repairs done on a set of matching #'s humps on a restore.He said the guy @ Headbytes did a great job considering 3 other shops had told him the heads were not salvagable.Good pricing as well.He did warn tho that the guy will talk your ears off if you hang around long enuff.LOL.
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  #43 (permalink)  
Old 09-07-2013, 12:50 PM
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Originally Posted by jokerZ71 View Post
I talked to a fella that had some repairs done on a set of matching #'s humps on a restore.He said the guy @ Headbytes did a great job considering 3 other shops had told him the heads were not salvagable.Good pricing as well.He did warn tho that the guy will talk your ears off if you hang around long enuff.LOL.
How far is this guy from you Joker?
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  #44 (permalink)  
Old 09-07-2013, 04:13 PM
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Probably 150 miles or so. I'm bout 4o miles east of Memphis. 160 west of Nashville.
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Old 09-26-2013, 10:12 AM
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Engine deck

So>>>>I got my short block back from the machine shop. When I took the plastic off I found the engine deck looked you see in the photos.

1) Will a head gasket seal?
2) If the deck needs to be cleaned up will I have a problem bolting up my heads and intake?

Not sure what to do at this point.
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