Stock springs OK to 7000 rpm, requires no headwork
Made in the USA
Product Note:
Specification
Details
Country of Origin
USA
Drive Type
Gear
Exhaust Duration
254 degrees
Exhaust Lift
.410 in.
Exhaust Timing (Close)
31 degrees
Exhaust Timing (Open)
43 degrees
Intake Duration
254 degrees
Intake Lift
.400 in.
Intake Timing (Close)
40 degrees
Intake Timing (Open)
34 degrees
Material
Steel
Quantity
4
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
Harley Davidson
XL Sportster 1957-1958
XLC Sportster 1958
XLCH Sportster 1958-1966, 1969
XLCH1000 Sportster 1000 1970, 1972-1980
XLH Sportster 1958, 1960-1969, 1979-1980
XLH1000 Sportster 1000 1979-1980, 1985
XLH1000 Sportster Standard 1970-1978
XLS1000 Sportster Roadster 1979-1980
XLT1000 Sportster Touring 1977, 1980
XLX1000 Sportster 1000 1985
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