• Drag part number: 0930-0139
• Manufacturer Number: 900-0251
• Must use S&S rocker boxes (PART #90-4110) if S&S compression releases are used.
• High port flow gives great performance now, and more later when additional upgrades are done
• Heads are fully assembled with springs and valves
• Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see Compression Ratios chart for specifications
• 79cc heads work great with stock motors for 88" to 103" motors; 89cc heads work best for motors over 103" or with high-compression pop-up pistons
• 79cc have 1.940" intake and 1.575" exhaust valve and springs for up to .650" lift; 89cc have 2.000" intake and 1.605" exhaust and .640" springs
• 79cc heads accept OEM rocker boxes
• 79cc and 89cc heads require S&S Lower Rocker Box Gasket Kit (0934-4574)
• Heads are machined for compression releases (sold separately); S&S rocker boxes required when using S&S compression releases
• Do not include rocker arm components, intake manifold or gaskets
• Heads include four long headbolts, and reuse four long OEM headbolts
• Accept OEM intake manifolds
• Made in the U.S.A.

• Product Name: Cylinder Head Kit
• Model: Super Stock
• Base Color: Black
• Color/Finish: Powder-Coated
• Color/Finish: Black
• Material: Aluminum
• Displacement: 79 cc
• Units: Pair
• Riding Style: Street
• Finish: Powder-Coated

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