Icon Pistons IC10003-030 Fits SBC 350 Dish 18.5cc Bore 4.030

Icon's FHR (Formed Head Relief) pistons deliver quality on a budget. FHR pistons have valve reliefs that are formed into the piston as the forging blank is pressed into the die. Many of the FHR dome pistons feature a solid dome. This gives engine builders the flexibility to machine the dome to their desired compression ratio. FHR pistons are 11% silicon which means they can be installed with tighter piston to wall clearance. In addition, the use of 4032 aluminum decreases the friction created during engine operation, this results in extended piston life and reduced wear.

Crown and valve reliefs are cnc machined

Skirts machined by UEM's unique in house built cnc machines

Accumulator groove to help eliminate flutter and maximize ring seal

Skirt and pin boss struts designed to withstand heavy loads from high cylinder pressures

Wrist pins and spiral lock included

1/16, 1/16, 3/16 rings not included

Compression Ratio 58cc 9.6:1 - 64cc 9.0:1 - 76cc 8.1:1

Advertised piston weight 431 grams, 132 gram wrist pin

Note: Standard bore size is 4.000

Note: Offset Pin. No mini grooves on top land. For Boosted Applications
Replaced IC9980