393cc BORE KIT

86mm Forged Piston, 10:1 - 13:1 Compression.

Excellent torque and good overall power with this kit.

INCLUDES: Sleeve, piston, pin, rings, circlips, headgasket.

REQUIRES: Resleeving, boring, rejetting. Uses stock basegasket (not included).

RECOMMENDED: 11:1 or higher compression requires race gas 110 octane or greater.

00254 H BORE KIT 393CC -- $335.00 CHOOSE COMPRESSION RATIO 10.5:1 PUMP GAS OK 11.5:1 RUNS ON RACE GAS MIX 12.5:1 RUNS ON RACE GAS 13:1 RACE GAS 110 OCTANE OR GREATER Quantity

STROKER 6mm

430cc with our 86mm piston kit.

Excellent torque and quick throttle response.

INCLUDES: Work done on your crank. Parts, if needed, will cost extra.

REQUIRES: Send in your crank for modification.  Download our Stroker Booklet for details.

RECOMMENDED: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

16069 H STROKE ATC350X -- $290.00 CLICK TO APPROVE I am shipping my crank to Powroll for modification. I have read the General Product Info Page. Quantity

CAMSHAFT - Midrange Grind

HARDWELD CAM, NO CORE REQUIRED

Lift .355” Intake, .360” Exhaust.

Good mid to top end in stock displacement engines. Great torque to midrange power with larger displacement engines.

REQUIRES: Valve Springs #24024.

RECOMMENDED: New or Hardfaced rockers.

12726N H CAM 350X MIDRANGE -- $185.00 Quantity

CAMSHAFT - Race Grind

HARDWELD CAM, NO CORE REQUIRED

Lift .360” Intake, .360” Exhaust

Designed for great mid to top end performance with larger displacement engines.

REQUIRES: Valve Springs #24024.

RECOMMENDED: New or Hardfaced rockers.

12725N H CAM 350X RACE -- $185.00 Quantity

ROCKERS - Hardfaced Rockers

HARDFACE, done on your cores

Designed to work with all aftermarket camshafts.  Highly recommended in any performance engine.

REQUIRES: Send in your good cores for work.  Turn-around is approximately 4 weeks.

VALVE SPRINGS WITH TITANIUM RETAINERS

Designed for use with any performance cam which requires stronger springs.

24024 H VALVE SPRINGS 350X -- $130.00 Quantity