http://www.dieselservices.com/html/g...mplete_p92.cfm
I put a pair of these on my rebuild a few years ago, they appeared to be good quality but am not sure where they are actually cast. I put 40k on them towing and had no issues. I sold the truck though but am sure they are doing fine.
Joshua R. L. Certified Journeyman Automotive Service Technician
1997 K1500 6.5T, DSG gears 'n' girdles 364k
1997 K2500 5.7, 428k
1999 K2500 6.5T, 514K
1961 Apache 10 SWB panel, work in progress
John, did you ever get an answer to your question? The pair of heads I got from ACH weren't too great, one had alot of core shift. Unfortunately they needed to go back on one of my service trucks, now after 10k miles I water in the cylinder. To me it doesn't matter about warrantee, its the down time. Are there any heads that are not made in China?
I've decided that none other than new AMG castings will do. I ended up finding some heads in my collection that could be used.
Next set will just be new AMG heads.
Sorry to hear of bad heads on your engine, that's been my fear, and you're not the only one.
1982 C10 SCSWB 6.5TD, mods too extensive to list. (13.69 1/4 mile @94.6 MPH) RACE TRUCK
1982 C10 SCSWB 6.2NA, 2.73 700
1986 C10 SCLWB 6.2TD 3.73 700
1989 V20 SUB 6.2NA, 3.73 400
1994 G20 VAN 6.5NA, 3.42 60E
1994 K20LD ECSWB 6.5TD, 3.42 80E
1995 K20 SUB 6.5TD, Wrecked, ran into by stupid teen.
1995 C3500HD DRW 6.5TD, 12' Flatbed 5.13 80E
1995 C3500HD DRW 6.5TD, 18' Rollback Wrecker 4.63 80E
1994 C20HD ECLWB 6.5TD 3.73 80E Wifes Truck.
1995 C20LD ECSWB 6.5TD 3.73 80E
1995 K20LD SCLWB 6.5TD 3.73 80E
1996 K30 DRW 6.5TD 4.10 80E
1997 C10 Tahoe 2Door 2WD 5.7L to 6.5 Conversion Underway
Bobbie Martin1995 Chevrolet Suburban 1500 6.5 TD 2WD- DB2 mechanical fuel injection
GEP Optimizer 6.53 Detroit Diesel Power
6.53L, GEP Block & Heads, .020 over, ARP studs, DB2 Inj. pump, GM8 Turbo w/TurboMaster
K47 Airbox with K&N filter, 3" mandrel bent exhaust, 2ΒΌ" Crossover, Mann ProVent
HO Water Pump, Hayden "Truck Fan" Clutch, 21" 9 blade Duramax Fan
No PMD, APP, CDR, optical sensor or vacuum pump!
Author of The DB2 Conversion Guide
Click Here to Email Me
hey john, try 6.5liter.com, this guy gets his blocks from brazil, and i think his heads come from canada, also my brother jim just said he gets one of his blocks from canada as well... jim talked to him on the phone one time, over there they love the 6.5l...
you might know this guy better than us......
1993 sierra 3500 drw, 6.5L DB2831 ground spring, 4000rpm, custom cold air intake, H1C, 3 inch magna flow stainless muffler, remote tranny & engine oil coolers with fans.
Sorry for the hi-jack...use some caution with 6.5litre.com...for the only reason being that if you ask to visit his machining area, you will get a flat out.... no.
Not saying he is a bad business, however I thought this was a little distressing... he does his machining in the same city I work in, and refused to divulge the address. Reason-it had to do with taxes??
Just wanted to see the quality of these Brazilian castings before I plunked down for a motor.
Good Day!
95 Suburban 1500 Bone Stock Orig.
purchased at 103K from first owner
new alternator/autozone gold @104K
re-trannyed with shift kit @107.5K
new Bilsteins all around @ 127K
Kennedy exhaust @128k ..zoom!
new lift pump w/OPS bypass @ 130K
Kennedy FSD cooler @ 135K
New IP/Injectors/G-plugs @ 137k
Another autozone alternator and Optima Reds @ 150K
Another pump and injectors @157K
New chain and gears @157K
HO pump single therm setup @157K (will see what happens)
Head gasket or worse to be determined...164k
NEW AM General 6.5 installed and running well! @ 164K!!!!!