{"product_id":"skunk2-racing-alpha-series-titanium-valve-retainer-set-for-honda-d-series-engines","title":"Skunk2 Racing Alpha Series Titanium Valve Retainer Set for Honda D Series Engines","description":"Skunk2's industry-leading Alpha Titanium Retainers for the Honda D Series engines are designed to significantly reduce valvetrain mass, resulting in more horsepower and improved valvetrain stability. Similar to Skunk2's already popular Pro Series Titanium Retainers, Alpha Titanium Retainers feature radius-cut edges for additional rocker arm clearance and reduced weight, strategically positioned lightening grooves, and reduced overall heights for better valve seal clearance and even further weight reduction. Alpha Titanium Retainers are manufactured using the latest 3D CAD (Computer Aided Design) and FEA (Finite Element Analysis) to ensure that each is optimized for strength as well as for reduced weight. Skunk2 engineers then test and prove their designs on the engine dyno as well as the race track. Once approved for manufacturing, only medical-grade titanium that's been ultrasonically inspected and certified is used. Following CNC machining, each retainer is then individually inspected to ensure proper hole diameter, taper, and that each are free from machining defects to ensure proper installed valve spring heights and pressures. Finally, each retainer is serialized for your protection, including valuable information, like material batch specifics as well as production and inspection dates.\nAlpha Series Valve Spring Retainer Set; D Series;\n\u003cul\u003e\n  \u003cli\u003eFor K Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnhance your Honda D Series engine performance with the Skunk2 Racing Alpha Series Titanium Valve Retainer Set. Designed to significantly reduce valvetrain mass, these retainers help increase horsepower and improve valvetrain stability, making them an ideal choice for racing and high-performance applications. Crafted from medical-grade titanium using advanced 3D CAD and FEA techniques, each retainer is optimized for strength and minimal weight. The radius-cut edges provide additional clearance for rocker arms and contribute to weight reduction, while strategically placed lightening grooves further decrease overall mass. These features ensure improved valve operation and reduced stress on valvetrain components. Each retainer undergoes rigorous CNC machining, ultrasonic inspection, and individual quality checks to guarantee precise hole diameters and taper angles, ensuring proper fitment and valve spring pressure. The serialized design includes valuable information about material batch, production, and inspection dates for added security. Suitable for Honda Civics from 1988 to 2000 with D Series engines, these retainers are engineered for durability and high performance. They are an essential upgrade for enthusiasts seeking to maximize engine efficiency and reliability without compromising on quality or safety. Whether for daily driving or competitive racing, the Skunk2 Alpha Titanium Retainer Set offers a reliable solution to enhance your engine’s valvetrain dynamics and overall power output.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMade from medical-grade titanium for strength and lightweight performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRadius-cut edges for increased rocker arm clearance and reduced weight\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStrategic lightening grooves to minimize valvetrain mass\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptimized using 3D CAD and FEA for durability and weight reduction\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIndividually inspected for precise manufacturing standards\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSerialized for quality assurance with batch, production, and inspection data\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1987 Honda Wagovan DX\u003cbr\u003e\n1988 Honda Civic DX\u003cbr\u003e\n1988 Honda Civic LX\u003cbr\u003e\n1988 Honda Civic RT 4WD\u003cbr\u003e\n1988 Honda CRX DX\u003cbr\u003e\n1988 Honda CRX Si\u003cbr\u003e\n1989 Honda Civic DX\u003cbr\u003e\n1989 Honda Civic LX\u003cbr\u003e\n1989 Honda Civic RT 4WD\u003cbr\u003e\n1989 Honda Civic Si\u003cbr\u003e\n1989 Honda CRX Base\u003cbr\u003e\n1989 Honda CRX Si\u003cbr\u003e\n1990 Honda Civic DX\u003cbr\u003e\n1990 Honda Civic EX\u003cbr\u003e\n1990 Honda Civic LX\u003cbr\u003e\n1990 Honda Civic RT 4WD\u003cbr\u003e\n1990 Honda Civic Si\u003cbr\u003e\n1990 Honda CRX Base\u003cbr\u003e\n1990 Honda CRX HF\u003cbr\u003e\n1990 Honda CRX Si\u003cbr\u003e\n1991 Honda Civic DX\u003cbr\u003e\n1991 Honda Civic EX\u003cbr\u003e\n1991 Honda Civic LX\u003cbr\u003e\n1991 Honda Civic RT 4WD\u003cbr\u003e\n1991 Honda Civic Si\u003cbr\u003e\n1991 Honda CRX Base\u003cbr\u003e\n1991 Honda CRX HF\u003cbr\u003e\n1991 Honda CRX Si\u003cbr\u003e\n1992 Honda Civic CX\u003cbr\u003e\n1992 Honda Civic DX\u003cbr\u003e\n1992 Honda Civic EX\u003cbr\u003e\n1992 Honda Civic LX\u003cbr\u003e\n1992 Honda Civic Si\u003cbr\u003e\n1992 Honda Civic VX\u003cbr\u003e\n1993 Honda Civic CX\u003cbr\u003e\n1993 Honda Civic DX\u003cbr\u003e\n1993 Honda Civic EX\u003cbr\u003e\n1993 Honda Civic LX\u003cbr\u003e\n1993 Honda Civic Si\u003cbr\u003e\n1993 Honda Civic VX\u003cbr\u003e\n1993 Honda Civic del Sol S\u003cbr\u003e\n1993 Honda Civic del Sol Si\u003cbr\u003e\n1994 Honda Civic CX\u003cbr\u003e\n1994 Honda Civic DX\u003cbr\u003e\n1994 Honda Civic EX\u003cbr\u003e\n1994 Honda Civic LX\u003cbr\u003e\n1994 Honda Civic Si\u003cbr\u003e\n1994 Honda Civic VX\u003cbr\u003e\n1994 Honda Civic del Sol S\u003cbr\u003e\n1994 Honda Civic del Sol Si\u003cbr\u003e\n1995 Honda Civic CX\u003cbr\u003e\n1995 Honda Civic DX\u003cbr\u003e\n1995 Honda Civic EX\u003cbr\u003e\n1995 Honda Civic LX\u003cbr\u003e\n1995 Honda Civic Si\u003cbr\u003e\n1995 Honda Civic VX\u003cbr\u003e\n1995 Honda Civic del Sol S\u003cbr\u003e\n1995 Honda Civic del Sol Si\u003cbr\u003e\n1996 Honda Civic CX\u003cbr\u003e\n1996 Honda Civic DX\u003cbr\u003e\n1996 Honda Civic EX\u003cbr\u003e\n1996 Honda Civic HX\u003cbr\u003e\n1996 Honda Civic LX\u003cbr\u003e\n1996 Honda Civic del Sol S\u003cbr\u003e\n1996 Honda Civic del Sol Si\u003cbr\u003e\n1997 Honda Civic CX\u003cbr\u003e\n1997 Honda Civic DX\u003cbr\u003e\n1997 Honda Civic EX\u003cbr\u003e\n1997 Honda Civic HX\u003cbr\u003e\n1997 Honda Civic LX\u003cbr\u003e\n1997 Honda Civic del Sol S\u003cbr\u003e\n1997 Honda Civic del Sol Si\u003cbr\u003e\n1998 Honda Civic CX\u003cbr\u003e\n1998 Honda Civic DX\u003cbr\u003e\n1998 Honda Civic EX\u003cbr\u003e\n1998 Honda Civic GX\u003cbr\u003e\n1998 Honda Civic HX\u003cbr\u003e\n1998 Honda Civic LX\u003cbr\u003e\n1999 Honda Civic CX\u003cbr\u003e\n1999 Honda Civic DX\u003cbr\u003e\n1999 Honda Civic EX\u003cbr\u003e\n1999 Honda Civic GX\u003cbr\u003e\n1999 Honda Civic HX\u003cbr\u003e\n1999 Honda Civic LX\u003cbr\u003e\n1999 Honda Civic Value Package\u003cbr\u003e\n2000 Honda Civic CX\u003cbr\u003e\n2000 Honda Civic DX\u003cbr\u003e\n2000 Honda Civic EX\u003cbr\u003e\n2000 Honda Civic GX\u003cbr\u003e\n2000 Honda Civic HX\u003cbr\u003e\n2000 Honda Civic LX\u003cbr\u003e\n2001 Honda Civic DX\u003cbr\u003e\n2001 Honda Civic EX\u003cbr\u003e\n2001 Honda Civic GX\u003cbr\u003e\n2001 Honda Civic HX\u003cbr\u003e\n2001 Honda Civic LX\u003cbr\u003e\n2002 Honda Civic DX\u003cbr\u003e\n2002 Honda Civic EX\u003cbr\u003e\n2002 Honda Civic GX\u003cbr\u003e\n2002 Honda Civic HX\u003cbr\u003e\n2002 Honda Civic LX\u003cbr\u003e\n2003 Honda Civic DX\u003cbr\u003e\n2003 Honda Civic EX\u003cbr\u003e\n2003 Honda Civic GX\u003cbr\u003e\n2003 Honda Civic HX\u003cbr\u003e\n2003 Honda Civic LX\u003cbr\u003e\n2004 Honda Civic DX\u003cbr\u003e\n2004 Honda Civic EX\u003cbr\u003e\n2004 Honda Civic GX\u003cbr\u003e\n2004 Honda Civic HX\u003cbr\u003e\n2004 Honda Civic LX\u003cbr\u003e\n2004 Honda Civic Value Package\u003cbr\u003e\n2005 Honda Civic DX\u003cbr\u003e\n2005 Honda Civic EX\u003cbr\u003e\n2005 Honda Civic EX Special Edition\u003cbr\u003e\n2005 Honda Civic GX\u003cbr\u003e\n2005 Honda Civic HX\u003cbr\u003e\n2005 Honda Civic LX\u003cbr\u003e\n2005 Honda Civic LX Special Edition\u003cbr\u003e\n2005 Honda Civic Value Package\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: 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