Est. delivery Mon, 19 May - Mon, 2 JunEstimated delivery Mon, 19 May - Mon, 2 Jun
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Condition:
Brand NewBrand New
Lift Springs - Winkle Black 106-3233. 79cc have 1.940" intake and 1.575" exhaust valve and springs for up to. 640" lift; 89cc have 2.000" intake and 1.605" exhaust and. 640" springs. 79cc heads accept OEM rocker boxes.
For street performance use they are ideal. With 583-585 S&S cams not necessary to machine/grind valve reliefs on pistons. That alone should be enough incentive to use these heads. The added compression ratio is good for a few ponies.