JES Track 1 SBF Cylinder Heads

JES Track 1 Cylinder Heads

Track 1 cylinder heads are the perfect compromise between budget and performance!

General Specs:
195cc-233cc Intake Port
70cc Exhaust Port 
68cc Combustion chamber
Spring Pockets cut to accept 1.55" OD Solid Roller Springs
Hardened Valve Seats
.530" OD Bronze Valve Guides
CNC Ported Intake and Exhaust Runners
Hand Bowl Blended
Lapped Valves

Flow Specs (233cc Int. Port 45*2.08" / Pro Exh. Port 50* 1.60"):
.300" 199/136
.400" 246/166
.500" 278/201
.600" 304/228
.700" 320/243
.800" 330/253
.900" 332/259
1.00" 336/262

Use 3/4" Reach 5/8" Gasket Style Spark Plugs (Example NGK R5671A-9)

Standard Components Include:
Stainless Intake Valves
Stainless Exhaust Valves