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Cylinder Heads

The Original "World" SPORTSMAN II is Now Even Better!

-Hi-Flow 200cc intake runners
-Fast-burn 64cc or 72cc chambers
-Machined for 2.020" x 1.600 valves
-Angled or straight spark plug bosses
-Raised dual-pattern valve cover rails
-Hardened exhaust seats for unleashed fuels
-Accepts ALL factory accessories

2.02/1.60 stainless valves, 1.250 single springs, studs and guide plates, retainers and locks.

-Unassembled Package
-Basic Assembly
-Race-Ready Package

SPORTSMAN II
200cc intake runners, reshaped combustion chambers and exhaust ports make these heads produce 30-70 gains right out of the box! Extra thick port walls allow ample room for additional porting. Accepts screw-in studs and guideplates. Available bare or complete.

MERLIN HEADS
Oval Port / Rectangular Port BB

Chevy iron street/race head complete assembled heads with 2.19 or 2.25/1.88 valves, 262cc, 310cc or 345cc intake runners, 1.550" race springs 7° retainers/locks, studs and guideplate.

MERLIN
50 ft-lbs more torque than LS6. Seats can take up to 2.25" x 1.94" or 2.30" x 1.90" combinations, 265cc runner for oval ports, 50-100HP with 119cc rectangle ports and 315cc runner volume. Available bare or complete.

WINDSOR
Windsor Jr. heads have 171cc runner volume, great for fuel injected 5.0! Windsor heads have 197cc intake runners, heart-shaped combustion chambers and dramatically improved exhaust ports making these heads the best thing you can do for your Ford 289, 302 351W! Machined for screw-in rocker studs and guideplates allows for a variety of rockers without additional machining. Available bare or complete.

Pro 1
Three intake port sizes (200cc, 215cc and 230cc) cover applications from street to competition.

DART PRO 1
Three intake port sizes (310cc, 325cc and 345cc) cover applications from street to competition. Spring seats accept up to 1.625" springs. Valve angles rolled two degrees from stock to reduce chamber volume and improve flow.

DART IRON EAGLE ss
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165CC intake runner volume, 72cc race combustion chamber straight plug 1.940-1500 valves screw in studs, heavy duty cast stronger than Vortec, does not require special intake like Vortec, flow testing proves Iron Eagle flows the same on intake runner but outlfow Vortec on exhaust side. Right out of the box.