Home > >

Big Block GX390 and 420cc Forged Piston Kit
Big Block GX390 and 420cc Forged Piston Kit


 
Alternative Views:


Our Price: $195.00
Sale Price: $95.00
Savings: $100.00


Product Code: PISTONKITGX390


Select Piston Combo:


Qty:  
Description
 
These forged piston kits are only available while quantities last! Select your bore size below and compression height we have to offer. We have the big block pistons available in 88mm bore, 88.25mm (.010" overbore), 92.75mm bore which is .030" overbore for the Vegas Carts 460cc blocks.

For reference a 1.100" compression height works with the GX390 4.410" or 4.450" length connecting rods

.900" compression height works with our 4.650" length connecting rod for GX390, 420cc and 460cc engine.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 October 15, 2020
: Bob Weeks from Valemount, BC Canada  
Fit like it should with the long rod to zero deck height.No info on ring gaps but after checking they were already sized.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Great Piston if your building your own engine October 14, 2020
: Walt Morrison from Kent, WA United States  
Once again Bullfrog designed and had produced superior product

Was this review helpful to you?