The design improvements and re-engineering of the new aftermarket castings add durability and virtually eliminate the potential for cracking in both the block and heads.
Our Updated & Improved 6.5 Engine
Finally! ... you can have all of GM and AM General's most recent 6.5 engine updates at a much more affordable price than the dealer can offer. These engines are assembled using All New redesigned block and heads to address the cracking issues that plagued the original 6.5 GM castings. The design improvements and re-engineering of the new castings add durability and virtually eliminate the potential for cracking for both the block and heads.
Here is What is New and Improved about these Engines:
These engines are built using the New & Improved O.E.M. Block and Head Castings.
These Engines also include improvements to the internal components and oiling systems.
BLOCK & HEADS:
The iron used in the new block utilizes molybdenum, a metal yielding a 20-25% increase in strength, without being brittle. The new block design also incorporates improved main bearing webs and caps. In addition, the head bolt holes in the block deck are strengthened, vastly improving head gasket durability. Additionally, changes of the water jacket design in the heads have helped address the 6.5's overheating problems. The original 6.5 & 6.2 cylinder heads produced by GM were prone to developing small cracks between the valves. The new redesigned heads have added chromium to the cast-iron to virtually eliminate these and other cracking issues. Our new blocks are NOT from China. Blocks are received as raw castings from a large reputable foundry that continues to produce the OEM 6.5 castings. Then the CNC machining for bore and decking is completed. This process offers a far superior platform for the engine build-up than Asian sourced pre-machined aftermarket blocks. This new block and head system offers complete parts interchangeability & bolt hole alignment as your original block, because it is the original block, just better!
OILING SYSTEM:
This new engine gains improved durability & longevity with a High Volume / High Pressure oiling system.
INTERNAL COMPONENTS:
Mahle Clevite has significantly improved both the Pistons and Connecting Rods since the time that the 6.5 was used by General Motors. The Connecting rods are more durable and the Pistons are stronger and lighter.
With these important improvements, Our new 6.5 is among the toughest, longest lasting 6.5L diesel engines available today.
Not one block or head crack issue to date. - Now that's what we mean by improvement.
Some other companies are claiming to sell new block/head engines, but be careful, many are new block/heads using the old casting forms, no improvements and poor quality alloys- FROM CHINA! . Booooo! There is only a handful of others offering the real IMPROVED & UPDATED castings aside from AM General and General Motors themselves. If it's not OEM, What is it?
Available as a long block & as a 'drop-in' - Click on our products page button below, or at the top of this page for more details and pricing.
We also offer a 6.5 Marine Diesel engine. These engines are built specifically for Marine applications with an 18:1 ratio and forged crank.
We also build 6.2 L engines, including very limited supplies of N.O.S. new / improved 6.2 blocks.
Our Guarantee Be assured with our Unlimited mileage, one year warranty covering every engine we sell. This includes both our New/Improved 6.5 & Our rebuilt 6.5 Diesel engine. This also applies to engines used in commercial service. You expect hard work from your diesel powered truck, and we'll guarantee it. |  |
Assembly & Internal Components
Following assembly each engine is individually hot-run on the dynamometer. During this time the camshaft / lifters are properly run-in and the engine is monitored for any sign of oil or coolant leaks. All new and remanufactured engines are CNC machined, including line boring & decking.
All engines are subjected to live dyno testing. This is why we don't generally offer short-block engines. Short-blocks can not be adequately tested on the dyno.
We are proud of our lengthy track record with the GM 6.5 Liter Turbo Diesel engine. We do not take risky shortcuts during the manufacturing / remanufacturing process. The grievous examples below are actually common practice with some "cut-rate" rebuilders.
- We DO NOT weld on cracked cranks, blocks, caps or heads - or any part of our engines. If the parts are cracked, they are thrown away.
- We DO NOT "sleeve" cracked blocks.
- We DO NOT Cut or Machine any bearing surfaces on the 6.5 crankshaft - GM says this crank should never be cut! (Nitrite coating)
- We DO NOT use any Chinese castings or any cheap "White Box" internal engine parts from any Asian country!
Compare to others: Our long blocks come with already installed; valve covers, oil pan, oil pickup tube, timing chain cover, new harmonic balancer.
All long blocks have NEW pistons, connecting rods, valves, valve springs, valve keepers, push rods, rocker arms, lifters, camshaft, timing chain, timing gears, valve guides, three angle seats, cam, rod and main bearings, piston rings, gaskets.
All our engines are upgraded to a High Volume / High Pressure oil pump.
The 6.5 TD desperately needs a boost of oil to the main bearings, this pump does the job like no other in the business!
All moving parts are NEW, with the only exception being the crankshaft. The crankshafts are magna fluxed and all bearing surfaces are restored. The service life of the crankshaft is effectively restored to like NEW condition after our polishing process is complete. Often the results are better than new, considering the personal attention each crankshaft gets in our facility as compared to the mass-output standards at the GM factory. A large percentage (60-80%) of the cranks that come back with the cores are unacceptable for use, therefore we actually replace a large percentage of cranks with new, however polished cranks and new cranks perform to the same standard.
Note: We do not cut/machine the crank or rod bearing surfaces, only a polish is acceptable by GM standards. If the crankshaft can not be properly restored with a polish, the crank is discarded.
We use MAHLE Clevite branded internal parts on both our new and remanufactured offerings. These are top quality O.E.M. parts from the same well-known industry leader that GM & AM General both continue to buy from.
Placing Your Order
Call us at 828-453-7779 and speak to our knowledgeable sales department. Place your order or just ask a question. We accept Visa and Master Card or can securely process a check by phone.
We have replacement engines for any 6.5 L diesel / deisel engine application, turbo or non turbo, van or pickup, GMC, Chevy or Hummer / AM General
Please state year make, model and 8th character of VIN code when buying to be sure you receive the correct engine.
New glow plugs (if shown in the pictures) are not included with the long blocks, but are included with drop-in's.
Installation of new glow plugs are required upon install for warranty to be in force.
Glow plugs are available with your engine order and can be shipped for no additional shipping charge.
We are always on www.ebay.com listed as: 6.5 L 6.5L Liter Turbo Diesel Engine Motor GM Chevy
Core Deposit
There is a $500.00 core deposit that will be refunded when rebuildable core is received back. Any of your core's deficiencies can be pro-rated and may not necessarily mean complete forfeiture of core deposit.
Just let us know when the core is ready, and our freight company will pickup the core. We pay return shipping for core.
Our core deposit is just $500, not $1000 or even $1500!, like some other companies on the Internet.
The core charge will be $1000 for international orders, since no core return is feasible due to shipping costs.
Shipping
Shipping is by truck freight and cost is between $260-$450 depending on your location.
($260-$320 In East coast Region , $440 for parts of California, points between vary accordingly)
We can also quote for International shipping Rates.
Please Note: We request that you don't call or e-mail with retrofit of gas to diesel conversion questions. Conversions are generally not worth the effort or cost and entail quite a bit more then someone with limited experience may think.
Want the Best 6.5? | Our Guarantee | Internal Components | Placing Your Order | Core Deposit | Shipping
