Description:

heads were spec'd & worked on by tony mamo. aside from the original spec's these heads were built with -  they have the 10mm rocker bolt upgrade, tonys porting & milled to 70cc by him. i installed new valve springs at the end of last season. rockers are 1.7 yella terra's that require the YT specific valve cover seals to clear the stock valve covers (i can include the ones i have, they were replaced in november) 


FAST 102 lsxr intake SOLD


afr 245 mongoose head specs (from afr site)

8mm Bead Lock Intake Valve, 2.165" x 4.900" Overall Valve Length
8mm Bead Lock Exhaust Valve, 1.600" x 4.900" Overall Valve Length
PAC Racing Spring 1.270" OD Hydraulic Roller Dual Valve Spring, 155 lbs. on seat, .650” maximum lift, Max RPM 7000-7200
7° Titanium Retainers 1.245" O.D x .885" I.D x .655" I.D
7° Bead Lock Valve Keepers
Viton Valve Seals .600" O.D x .495" I.D 
Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep 
Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep 
8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L

located in Cornelius NC, can ship at buyers expense but would prefer local pickup