ADA Racing billet high compression STANDARD head KIT.

Standard head shell, a set of domes, and BR8ES solid top spark plugs. Includes a FREE cylinder head bling bolt set - $20.69 savings.

You have your choice of color - Black, Blue, Red and Silver

BLACK, BLUE & SILVER ARE IN STOCK - RED WILL BE A WEEK WAIT TIME

You have your choice of dome CC size (please note H.S.I. is not responsible for wrong dome cc size choice resulting in detonation). Refer to ADA dome size chart in photos to make your decision.

* If you have a B-pipe and are pairing the high compression head with it - we HIGHLY recommend running dual cooling from the pump into the engine (I.e. run two separate lines from bulk head into the exhaust manifold). NO, one tee’d line is NOT the same. H.S.I is not responsible for the detonation of your engine if your engine creates too much heat due to improper jetting and cooling. If you are leery and would like assistance on what to purchase, send us a message!

Please note if you have an OEM exhaust system - you will need the exhaust mount bracket kit in order to install this head shell.

Part Number(s):

701-81mm / 37cc: 80-YA701L / Qty 2: 80-YA2137L / Qty 2: 41-BR8ES / 91-0101

701-81mm / 36cc: 80-YA701L / Qty 2: 80-YA2136L / Qty 2: 41-BR8ES / 91-0101

701-81mm / 35cc: 80-YA701L / Qty 2: 80-YA2135L / Qty 2: 41-BR8ES / 91-0101

701-81mm / 34cc: 80-YA701L / Qty 2: 80-YA2134L / Qty 2: 41-BR8ES / 91-0101

760-84mm / 40cc: 80-YA701L / Qty 2: 80-YA7640L / Qty 2: 41-BR8ES / 91-0101

760-84mm / 38cc: 80-YA701L / Qty 2: 80-YA7638L / Qty 2: 41-BR8ES / 91-0101

760-84mm / 37cc: 80-YA701L / Qty 2: 80-YA7637L / Qty 2: 41-BR8ES / 91-0101