JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy 359 C.I. - Bore" 4.040" - Stroke: 3.500" - Rod Length: 6.000" - Block Height: 9.000" 700107 Ultra-lite steel spools have more

Ultra-lite steel spools have more lightening holes and a narrower ring gear flange than standard units to help reduce rotating weight

1978-1989 Mercury Grand MarquisWhen utilized with Sniper EFI

Premium Flowmaster Quality

Silver vein powder coated for corrosion resistance

JE Pistons Standard 23 Domed Forged Piston Set - SB Chevy 359 C.I. - Bore" 4.040" - Stroke: 3.500" - Rod Length: 6.000" - Block Height: 9.000" 700107 Ultra-lite steel spools have moreThese high compression pistons are compatible with most aftermarket 23? heads and are ideal for drag racing and circle track applications. Valve reliefs will accommodate oversized valves and long duration, tight lobe separation cams. Precision CNC ring grooves are designed for 1 16, 1 16, 3 16 rings. Will not fit Pro Topline or Brodix 11X cylinder heads. Includes: Pin #927 2750 15 51S (130g) Double Spiro locks #927 042 CS Contact reduction grooves