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ZZP Ecotec Serpentine Belts

Pulleys & Belts - ZZP Ecotec Serpentine Belts
Pulleys & Belts - ZZP Ecotec Serpentine Belts

Model:

"Stage 2 LSJ" is for smaller pulley (3.1" and lower) M62 cars.

"Stock LSJ" is the stock OE length belt for the Cobalt SS and Ion Redline. 

"400" is the stock replacement belt for LNF, LE5, L61, LSJ (turbo) with Air Conditioning.

"390" is for your LSJ turbo converted car or LNF, LE5, L61 car with an ATI underdrive pulley.

"345" is the stock replacement belt for LNF, LE5, L61, LSJ (turbo) without Air Conditioning. Or if you were to remove your AC compressor.

"705" is the most common belt for our 2.2/2.4 supercharger kit.

For 20 years ZZPerformance has engineered products to give you an advantage in your race builds. Setting records has meant finding small advantages where we can. ZZP was the first to run 10's in a 3800, we hold the M90 supercharger record. We own one of the industries only supercharger dynos. In the LSJ market where you are limited to 6 ribs, ZZP holds the M62 dyno record. An OEM or aftermarket brand serpentine belt is meant to last as long as possible which leads to only being cost effective, but often times decreased performance. These attributes do not match the priorities we have and to meet our needs we designed our own line of belts.

Working with a major OE manufacture of belts, we experimented with various compounds until we achieved success. A belt with less slip under maximum load giving us a competitive advantage over builds using GM or Dayco or any off the shelf brand of belt. Just another in the long line of custom engineered products now available to you. If you're not running a ZZP belt, you're leaving a little HP on the table.

Stage 2 Belt notes

This belt was designed for use with GM's original stage kits which come with a 3.1" pulley. Running pulleys smaller than this works because of the Cobalt's tensioner but there are things to keep in mind:

1. A smaller pulley means the belt isn't as tight because it will have more slack.

2. A smaller pulley has less surface for the belt to grip

3. Smaller pulleys produce more boost, which in turn requires more HP to turn the blower. This additional HP increases the chance of belt slippage.

Ideally, this belt is used with a 3.1" pulley. A 3.0 is quite fine. As you go smaller problems can arise and it's recommended to use our adjustable tensioner instead of the smaller belt. Another option is using our oversized tensioner pulley with the smaller belt. We have seen belt failures with nearly all 2.7 and 2.6" pulley users who only run a smaller belt. We have seen many failures with 2.8" pulley users as well.

Pulleys & Belts - ZZP Ecotec Serpentine Belts
Pulleys & Belts - ZZP Ecotec Serpentine Belts
Customer Reviews
4.6 Based on 5 Reviews
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Filter Reviews:
MT
01/20/2021
Michael T.
United States United States
ZZP another WIN!!!

Install of the strut bar literally took 10 mins... Improved the cornering tremendously and looks good too!!! Thanks for another win on this build ZZP!!!

ZZPerformance ZZP Ecotec Serpentine Belts ReviewZZPerformance ZZP Ecotec Serpentine Belts Review
ST
12/10/2020
Shannon T.
United States United States
So far so good

Last belt shredded it was a stage 2 Ac delco belt that lasted 14years maybe this will do as well?

HD
10/02/2020
Horace D.
United States United States
Too Short...Shorty.

Thanks really impressed with quality and fitment

AS
09/21/2020
Austin S.
United States United States
Slips

I bought the stock length LSJ belt expecting it to be high quality like everything else I have gotten prior. I put it on and it wouldn't stop slipping. Not sure if the material was bad or just slightly oversized from production. I'm sure an oversized tensioner would've stopped it from slipping but I put on a different manufacturer belt and haven't had a problem since.

EG
07/10/2020
Erick G.
United States United States
Great product

Just what i need it