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Old 08-04-2013, 03:56 PM
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85/86 Aluminum Corvette Heads ???

I'm looking into a 64 Impala I found for sale.It's 150 miles away,so,I haven't got a chance to go look @ it in person.Pics only so far.Owners says it currentl has a 305 w/ aluminum heads.I asked about the heads to see what brand they were thinking they were prolly aftermarket.He says they are Corvette heads !!! Ain't they all ??????? LOL. Anyway,they are supposedly from a 85 or 86 Corvette.If so,what heads would this be?Car supposedly cranks,but,runs poorly due to carb needing rebuilt & tires.It has an E'broock carb.Not sure which 1.Hopefully,i'll get to go look @ it next wkend.Just curious about the heads.
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Old 08-04-2013, 04:01 PM
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If they truly are mid 80's corvette heads they will be L-98 corvette heads.I think they still use an updated version on the ZZ4 crate engine with the lightweight LT-4 valve train.They are a good tourqe head with 58cc combustion chambers not to many people have many good thins to say about them as their intake ports are 163cc and they also have D shaped exhaust ports.
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Old 08-04-2013, 04:07 PM
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They may not be too bad on the 305.If the body is straight,I doubt I'll keep the 305 anyway.Hard to tell anything for sure from the pics.It looks fairly straight,but,I know how that goes.
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Old 08-04-2013, 04:55 PM
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Consider them a diamond in the rough. You an make a very good high perf head from them
by properly porting them. 1.94x 1.50 valves or 2.00x 1.56 valves ( LT-4) and a new valve job)
Its up to you to finish the job GM started. Modest flow in stock as cast form, gets real good when ported.
John Lingenfelter used to run these in hand ported and CNC ported form.
I believe Lingenfelter Performance still sells them and or can still CNC port your castings for you.
But they are not cheap to do. It does show you the power potential thou.
There are now other heads now that are better and cheaper and overshadow the 113 heads.

The potential is still there, with self,home brewed hand porting on these heads if you care to do that.

reference:
www.lingenfelter.com

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Old 08-04-2013, 06:12 PM
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The guy I talked to didn't know a lot about the car or heads.It belongs to his brother who is spose to call me 2moro.He built the motor so hopefully he can give me some better info.
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Old 08-04-2013, 06:47 PM
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The casting number of the better 2nd design versions with the D exhaust port, ends in 113.

Diamond in the rough. Diamonds are not rare.
The heater hose route ing looks real scary in those pics.
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Old 08-04-2013, 06:55 PM
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Quote:
Originally Posted by jokerZ71 View Post
They may not be too bad on the 305.If the body is straight,I doubt I'll keep the 305 anyway.Hard to tell anything for sure from the pics.It looks fairly straight,but,I know how that goes.
EDIT: I once went out on a date based off of a picture.It was a very awkward 5 minutes.I won't talk about her,but,I will say,I wouldn't drive my truck in OD til she got out.The picture musta been took 10 yrs b4 !!! I don't make any decisions based on pictures since !!!!!
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Old 08-04-2013, 07:33 PM
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Quote:
Originally Posted by F-BIRD'88 View Post
The casting number of the better 2nd design versions with the D exhaust port, ends in 113.

Diamond in the rough. Diamonds are not rare.
The heater hose route ing looks real scary in those pics.
Am I seeing things,or,do both heater hoses appear to be goin into the WP???
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Old 08-04-2013, 08:08 PM
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Don't know about that but they're both laying across the header!
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Old 08-04-2013, 08:29 PM
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This may be a wasted 200 miles.I'm really not interested in the motor,just the body actually,so'if he will deal rite,it may be worth it even if the motor is crap.
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Old 08-04-2013, 08:35 PM
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From the pics the inside is pretty stripped but doesn't appear to be destroyed.Outside looks fairly straight.
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Old 08-04-2013, 08:40 PM
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Don't know about that but they're both laying across the header!
Oh that ??? That's for really cold days,so,the heatercore doesn't have to work so hard !!! LOL.
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Old 08-05-2013, 06:45 PM
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Did you ever see that episode of Texas Car Wars where they built a 64 Impala just like Cheech and Chong's? It kind of reminds me of that car.

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Old 08-05-2013, 07:24 PM
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It does !!! I had forgot about that car !!! Good movie.I got it here somewhere.I needa dig it up & watch it.Cheech n Chong.Alwayz good for a laff r 2 !!!
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Old 08-06-2013, 09:40 AM
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Yes Lingenfelter sells their ported L98 cylinder heads for $1595, on sale now for $1395. Tack on another $300 if you want them to polish down the CNC machine cutter marks by hand using sanding rolls.

Each CNC ported cylinder head will have the exact same port and chamber configuration as the original master used to develop the CNC program. Following porting each head receives: Precision 3 angle valve job to maximize flow & provide extended life, CC checking chamber size for correct compression, surfacing to insure deck flatness, professional assembly, setting spring height & checking all tolerances. Base price package includes: 2.00 stainless steel one piece intake valves 1.56 stainless steel one piece exhaust valves, double valve springs for 74211 or 74219 camshaft, titanium retainers, 10 degree locks, valve seals, guide plates & ARP screw in studs.

I would LOVE to have the fellas at LPE build me a 415cid LT5. They are rated at 610hp with STOCK CAMS. Fork up $4000 for a set of cams and 650-670 is attainable while winding that LT5 up to 7500rpm. Heck the 415 package is ONLY $29,000 lol.

peace
Hog
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