Aasco valve springs, titanium retainers and seats
Aasco HP109 springs made for the Porsche valve envelope, with titanium retainers: 8 mm for the 993 (1995–98), 9 mm for the 911, 914 and 930 (1965–79). Choose the part.
Shop order · ordered for you by Zaks Auto, Hudson NH
Aasco HP109 high-performance valve springs, designed for the Porsche spring envelope, with Aasco titanium retainers and HPSS steel seats. Aasco lists the HP10T8 retainers for the 993 (1995–98, 8 mm valves) and the HP10T9 retainers for the 911, 914 and 930 (1965–79, 9 mm valves); both are used with the HP109 springs and HPSS seats, not as an OE replacement.
Ratings and fitment are the maker’s published figures. Ordered for you by Zaks Auto and collected in Hudson, NH.
| Attributes | Value |
|---|---|
| Part |
Kit, 8 mm: springs, Ti retainers, seats (993 1995–98), Ti retainers, 8 mm, set of 12 (993 1995–98), Kit, 9 mm: springs, Ti retainers, seats (911, 914, 930 1965–79), Ti retainers, 9 mm, set of 12 (911, 914, 930 1965–79), HP109 valve springs (with HP10T8 or HP10T9 retainers), HPSS steel spring seats |
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