AASCO Motorsports
About AASCO Motorsports
AASCO Performance Inc. was founded in 1995 by brothers Dennis and Randall Aase whose passion for Motorsports has expanded over 80 years of combined experience and expertise in quality race proven parts and services.
AASCO Motorsports High Performance Porsche 911 Valve Spring Kits
AASCO's High Performance 8mm and 9mm Valve Springs Kits for 1965-1998 Porsche 911 engines include valve springs, titanium spring retainers and spring seats. If you are rebuilding your Porsche 911 engine, upgrading to AASCO's High Performance Valve Springs provide superior valve control to help protect from damage from over-rev. These valve springs are custom made for Porsche applications with a higher natural frequency that factory valve springs.
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Performance 8mm Valve Spring and Titanium Retainer Kit 95-98 Porsche 911 (993)
SKU: HP10T8-HP109-HPSS-PKG
$859.00
$815.00
Our 8mm Kit includes AASCO HP109 High Performance Valve Springs, HP10T9 Titanium Valve Spring Retainers, and HPSS Valve Spring Seats for 1995-1998 Porsche 911 993 models. AASCO's high performance valve springs, titanium valve spring retainers, and precision valve spring seats are all designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use. It operates at a higher natural frequency than the original factory Porsche or OE valve spring for performance and racing engines and at the very least minimizes damage from overrev when tracking your Porsche. Tech Specs: Installed Height 1.340” (34mm) Seat Pressure (lbs) 70-80 Max Valve Lift .512” (13mm) Spring Rate (lbs/in) 360 Coil Bind Height (in): 1.13" Spring Rate: 360 lbs/in No. of Springs Per Valve: Dual (Damper Spring Included) Definitions: Seat (installed) height: Total height of the spring when the valve is closed and the spring is unloaded Valve spring open height: Total height of the spring when valve is open and spring is experiencing load (compressing) Valve spring coil bind: When the valve spring is fully compressed to the point that all of the coils are compressed Learn More
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Performance 9mm Valve Spring and Titanium Retainer Kit 65-94 Porsche 911 70-72 914-6 78-79 930
SKU: HP10T9-HP109-HPSS-PKG
$859.00
$815.00
Our 9mm Kit includes AASCO HP109 High Performance Valve Springs, HP10T9 Titanium Valve Spring Retainers, and HPSS Valve Spring Seats for 1965-1994 Porsche 911, 1970-1972 Porsche 914-6, and 1978-1979 Porsche 930 models. AASCO's high performance valve springs, titanium valve spring retainers, and precision valve spring seats are all designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use. It operates at a higher natural frequency than the original factory Porsche or OE valve spring for performance and racing engines and at the very least minimizes damage from overrev when tracking your Porsche. Tech Specs: Installed Height 1.340” (34mm) Seat Pressure (lbs) 70-80 Max Valve Lift .512” (13mm) Spring Rate (lbs/in) 360 Coil Bind Height (in): 1.13" Spring Rate: 360 lbs/in No. of Springs Per Valve: Dual (Damper Spring Included) Definitions: Seat (installed) height: Total height of the spring when the valve is closed and the spring is unloaded Valve spring open height: Total height of the spring when valve is open and spring is experiencing load (compressing) Valve spring coil bind: When the valve spring is fully compressed to the point that all of the coils are compressed Learn More
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