STD Development -High Performance Head Assemblies

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Complete STD Heads for Panheads & Shovelheads
All STD heads are precision cast at 48,000lb tensile strength aluminum with high flow engineered ports and combustion chambers. Available with a fully hand blended valve job for the ultimate street engine, or with full hand port and polishing throughout for maximum horsepower and torque on the track.

Heads can be ordered for single or dual plugs, all of which run up to .600 lift cams without modifications.* STD heads are also available fully assembled with only the highest quality parts. Including 175 lb. spring kits, titanium collars, cast iron guides, and Viton rubber or Teflon seals with stock or oversize valves** in stainless steel or with black nitride finish.For the highest quality and best performance in hand crafted heads for Big Twin or Sportsters, look no further than STD.

*.600 lift cams - Evolution Only .550 lift cams, Pan Shovel & Shovel
** Evolution 1.940 Intake 1.650 Exhaust Pan/Shovel Shovel 2.000 Intake 1.800 Exhaust, Higher Lift are available upon request.

Assembled Cylinder Heads
for Pan/Shovel and Shovel Heads

STAGE I
Heads include steel or aluminum collars with a 150lb. spring kit, one piece stainless black nitride coated valves and a completely blended valve job for maximized flow, horsepower & torque.
List $1545.00

STAGE II
Heads include titanium collars with 150lb. spring kit, Precision Machining one piece black diamond valves and a completely blended valve job for maximized flow, horsepower & torque.
List $1608.80

STAGE III
This pair of heads includes steel or aluminum collars with 150lb. spring kit one piece stainless black nitride coated valves and a full Port and Polish throughout the ports and chambers for maximum performance, horsepower & torque.
List $1608.80

STAGE IV
Heads include titanium collars with 150lb. spring kit, Precision Machining one piece black diamond valves and a full Port and Polish throughout the ports and chambers for maximum performance, horsepower & torque.
List $1728.80

STD Cylinder Heads Introduction
Heads for Twin Cam 88 and Evolution • Big Twin Rocker Boxes • Heads for Pan Head and Shovel Head

Phone: (010) 818.998.8226 • Fax (010) 998.0210 • stddevelop@earthlink.net