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GM Series I

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GM Series 1 Pulleys ~ $89.95

'92~'96 Bonneville, Ninety Eight, Park Avenue, Riviera & more

GMS1 Pulleys

  • Made from 6061 T6 billet aluminum
  • Available in black, blue & red anodize
Please select Size & Color  
 
Default shipping is via US Priority Mail and is three day service coast to coast.

Shipping to Canada or International?
Please select your preferred delivery service below.

 
via UPS Mail -Canada -Priority ($15.99 additional shipping)
via All others -US Global Express (35.99 additional shipping)


For Next Day or 2 Day UPS to US destinations or shipping to other international destinations, please email the Pulley Boys with your City, Country and Postal Code.
 
 

Sampled Boost Levels
Please Note:

Measurable PSI is dependant on several factors including but not limited to; temperature, barometric pressure (including humidity and altitude) and flow characteristic modifications such as a 'cold air intake', exhaust (headers, high flow cat, cat-back exhaust etc), cam (springs, push rods, rockers etc)

Many other manufacturers and retailers will market their pulleys by whatever generic boost level or horsepower gain, but the Pulley Boys prefer to list pulleys by actual size and give sample data where possible that is reported by actual customers. All pulley sizes listed are as measured over the ribs where the belt contacts.

Pulley Boys do not warrantee any claims as to performance of any given pulley including typographical errors or damage caused by over-boost conditions. Care must be taken when knock retard or ping (detonation) occurs.

If you would like to contribute information to this database, please email the pulymkr.

Pulley Size PSI
2.85"
Stock 94~95
 
2.7"  
2.6"  
2.55"
Stock 92~93
 
2.5"
recommended size for 94~95
 
2.4"  
2.3"  
2.2"
recommended size for 92~93
'92-93 = 10-11 PSI
'94-95 = 12-13 PSI
2.1"  
2.0"  
 

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