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Old 06-18-2011, 07:26 PM   #1 (permalink)
duramax973
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6.5 head gaskets

I have a 1994 6.5 engine with a blown head gasket on the driver side in a 3500 dump. I am wondering if anyone can tell me if it is even worth putting new head gasket on this engine or should I spend the cash and put in a 350 with a standard transmission. I have $1900 into the truck right now and am kind of afraid to put in new head gasket and have the repeated problem of them blowing again. I have read alot on this site and have noticed this is a common problem. Just asking for a little advice and how much of a pain in the *ss is it to change these gaskets in the truck. Thanks for any help in advance and all advice will be greatly appreciated.
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Old 06-18-2011, 07:30 PM   #2 (permalink)
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A lot less pain in the *ss to change HG's than swapping motors.
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well to make your pump retarded, you could let it hang out with me for a day
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Old 06-18-2011, 08:20 PM   #3 (permalink)
CrazyRay
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I think a head gasket wold be a lot less painful. Swapping 350 gas for a diesel doesn't sound like an upgrade, consider torque specs and rear end gearing, then look at economy, gas milage vrs. Diesel milage.
If you think your 6.5 was a slug when loaded ,wait till you try a small block.
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Old 06-18-2011, 08:33 PM   #4 (permalink)
DZZ71
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Agreed, a new set of head gaskets with arp head studs should last a quite a while.
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Old 06-18-2011, 09:25 PM   #5 (permalink)
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Have the heads checked for straightness and cracks before re installing them and do both at the same time for piece of mind.
Good time for a valve job,injectors and glow plugs while you are there.
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Old 06-18-2011, 09:27 PM   #6 (permalink)
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Good chance you'll have hairline cracks between the valves. You can get new heads with 5 year warranty for about 5-600. It's definitely worth it to do that and put the arp studs on. You're finished with head problems at that point.
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Old 06-18-2011, 09:56 PM   #7 (permalink)
CrazyRay
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Originally Posted by oldblacksmoker View Post
Good chance you'll have hairline cracks between the valves. You can get new heads with 5 year warranty for about 5-600. It's definitely worth it to do that and put the arp studs on. You're finished with head problems at that point.
100% agree on the stud kit, that little bit of extra will help more than you would think.
As for the hairline cracks, most likley they will be there. Yes yous hould replace heads that have crcks in them, I will tell youthat I have reinstalled heads with hair linecracks that where not in crutial places. And never had any real problems, unless you building a real powerhouse, and have the money to spend, this might be a part to reuse.
Ok now everyone can chime in
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I love My 98 swiss (cheese) silveraldo Extcab SB (shortbus)
Bought used in 05' with146k, now has 231k,
On 2nd set of NAPA group 78 batteries,
On 8th 9th starter from auto zone
Walboro frb-13 LP
Relocated PMD heat sink, 6' harness & #9 resistor
EGR mod , blocked lower "S" intake, Gutted upper "S" intake
Boost gauge w/LED
3 speed high idle mod
Custom LED lites inside cab , LED rope lites outside on ladder racks , LED's lite up inside all 3 tool boxes
TODO List
"All 4 ON " Headl light mod
WVO , possible 2nd tank &/or heated wvo lines .connected 15gal tank in bed for wvo, unfortunatly I had to disconect the stock tank.
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Old 06-18-2011, 09:58 PM   #8 (permalink)
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Quote:
Originally Posted by CrazyRay View Post
100% agree on the stud kit, that little bit of extra will help more than you would think.
As for the hairline cracks, most likley they will be there. Yes yous hould replace heads that have crcks in them, I will tell youthat I have reinstalled heads with hair linecracks that where not in crutial places. And never had any real problems, unless you building a real powerhouse, and have the money to spend, this might be a part to reuse.
Ok now everyone can chime in
x2.
most heads will have cracks. 90+% will be dry cracks that don't leak
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1987 6.2l Jimmy , being restored,4" lift, 35 mudders 1993 W350 5.9 , custom stretched cab, duelly flatdeck
2001 VW TDI Jetta 4 door loaded 2001 VW TDI Golf 2 door swapped engine project
Quote:
Originally Posted by 4320diesel View Post
well to make your pump retarded, you could let it hang out with me for a day
Quote:
Originally Posted by Hawkstrong View Post
Diaric wins thread derailment......
Quote:
Originally Posted by High Sierra 2500 View Post
Yeah Diaric, I gotta say, I'm afraid I'm going to have to give you an official warning on that.
6.2 FACTS AND ANSWERS Click Here
My Restoration Thread Click Here
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Old 06-18-2011, 10:01 PM   #9 (permalink)
oldblacksmoker
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Not going to argue about new or used heads. Really just has to do with budget, but I'd come up with the 120-150 for arp head studs. You just can't beat the price for new heads, valves, and everything. They are really worth it. Don't know if this is appropriate here, but I've got a good set of heads in kansas.
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Old 06-19-2011, 12:50 AM   #10 (permalink)
GMdiesels
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What company do you get the new heads from?
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