Texas Speed Dual Spring Cam Package for Cathedral Port Heads (LS1/LS2/LS6)


This Package Includes the Following Items:

  • Your Choice of Camshaft
  • Includes TSP .660″ Dual Spring Kit w/ PAC Racing Polished Springs, Titanium Retainers, Hardened Spring Seats, and New Valve Stem Seals
  • Texas Speed Hardened Chromoly Pushrods
  • 8620 Cam Core available upon request*

Competition Use Only, Not Legal for Road Use

With our integrated seat/seal combo, you no longer have to worry about special installation tools for your valve seals, tearing a valve seal upon installation, or valve seals popping off! Our new integrated seat and seal will work with factory-size valve guides and CANNOT be used on any aftermarket bronze guide applications! Use Two-Piece Seat/Seal for aftermarket guides.
We have two options listed for our dual valve spring kits.  The default option will use our PRC integrated one-piece seat and seal that simply pushes in place.  The other option is for the separate two-piece seat and seal that you typically find in any dual valve spring kit.  The two-piece kit will require separate installation of the valve seals after the seats are in place, and it does require a specific tool to make sure that the valve seals are installed properly (i.e. not crooked, torn, or not installed fully).  Our integrated seat and seal will make your installation much easier because it is virtually impossible to install it incorrectly!  You can choose either kit for no additional charge.  See the differences Below.


Dual Spring Kit with One Piece Seat and Seal


Dual Spring Kit with Two Piece seat and seal

This is the perfect upgrade package for customers looking for all the aftermarket parts needed to do a camshaft swap.  Typical gains will range from 30 to 65 rear-wheel horsepower from a TSP camshaft swap alone!
Optional Crankshaft Bolt & Gasket Kit Includes: Crank Bolt & Gaskets for Water Pump, Timing Cover, & Front Seal

We do offer the optional adjustable pushrod length checker that allows you to verify the correct pushrod length needed for your setup.  We can give you a good idea of what is typically used with your engine, lifter brand, etc., but it can certainly vary from setup to setup.  You can vary up to .050″ in pushrod length depending on which camshaft core the cam manufacturer uses!  This is NOT information that any camshaft manufacturer includes with their camshafts, so it is always best to verify the length you need to avoid any valvetrain issues.

Because we cannot stock every camshaft with every lobe separation angle, if you need parts quickly, we encourage you to call us to check the availability of the camshaft you want. The LSA(s) we typically stock for each camshaft is listed next to each camshaft. Some camshafts will have to be custom ground and drop-shipped from the manufacturer directly to you!

SKU: N/A Category:


Texas Speed Dual Spring Cam Package for Cathedral Port Heads (LS1/LS2/LS6) fits the following vehicle(s):
2004 Cadillac CTS-V
2005 Cadillac CTS-V
2006 Cadillac CTS-V
2007 Cadillac CTS-V
2005 Cadillac Escalade
2008 Cadillac Escalade
2009 Cadillac Escalade
2010 Cadillac Escalade
2011 Cadillac Escalade
2012 Cadillac Escalade
2013 Cadillac Escalade
2014 Cadillac Escalade
1998 Chevrolet Camaro
1999 Chevrolet Camaro
2000 Chevrolet Camaro
2001 Chevrolet Camaro
2002 Chevrolet Camaro
1997 Chevrolet Corvette
1998 Chevrolet Corvette
1999 Chevrolet Corvette
2000 Chevrolet Corvette
2001 Chevrolet Corvette
2002 Chevrolet Corvette
2003 Chevrolet Corvette
2004 Chevrolet Corvette
2005 Chevrolet Corvette
2006 Chevrolet Corvette
2007 Chevrolet Corvette
2006 Chevrolet Impala
2007 Chevrolet Impala
2008 Chevrolet Impala
2009 Chevrolet Impala
1999 Chevrolet Silverado 1500
2000 Chevrolet Silverado 1500
2001 Chevrolet Silverado 1500
2002 Chevrolet Silverado 1500
2003 Chevrolet Silverado 1500
2004 Chevrolet Silverado 1500
2005 Chevrolet Silverado 1500
2006 Chevrolet Silverado 1500
2007 Chevrolet Silverado 1500
2008 Chevrolet Silverado 1500
2009 Chevrolet Silverado 1500
2010 Chevrolet Silverado 1500
2011 Chevrolet Silverado 1500
2012 Chevrolet Silverado 1500
2013 Chevrolet Silverado 1500
2000 Chevrolet Suburban
2001 Chevrolet Suburban
2002 Chevrolet Suburban
2003 Chevrolet Suburban
2004 Chevrolet Suburban
2005 Chevrolet Suburban
2006 Chevrolet Suburban
2007 Chevrolet Suburban
2008 Chevrolet Suburban
2009 Chevrolet Suburban
2010 Chevrolet Suburban
2011 Chevrolet Suburban
2012 Chevrolet Suburban
2013 Chevrolet Suburban
2014 Chevrolet Suburban
2000 Chevrolet Tahoe
2001 Chevrolet Tahoe
2002 Chevrolet Tahoe
2003 Chevrolet Tahoe
2004 Chevrolet Tahoe
2005 Chevrolet Tahoe
2006 Chevrolet Tahoe
2007 Chevrolet Tahoe
2008 Chevrolet Tahoe
2009 Chevrolet Tahoe
2010 Chevrolet Tahoe
2011 Chevrolet Tahoe
2012 Chevrolet Tahoe
2013 Chevrolet Tahoe
2014 Chevrolet Tahoe
2006 Chevrolet Trailblazer
2007 Chevrolet Trailblazer
2008 Chevrolet Trailblazer
2009 Chevrolet Trailblazer
1999 GMC Sierra 1500
2000 GMC Sierra 1500
2001 GMC Sierra 1500
2002 GMC Sierra 1500
2003 GMC Sierra 1500
2004 GMC Sierra 1500
2005 GMC Sierra 1500
2006 GMC Sierra 1500
2007 GMC Sierra 1500
2008 GMC Sierra 1500
2009 GMC Sierra 1500
2010 GMC Sierra 1500
2011 GMC Sierra 1500
2012 GMC Sierra 1500
2013 GMC Sierra 1500
1999 GMC Yukon
2000 GMC Yukon
2001 GMC Yukon
2002 GMC Yukon
2003 GMC Yukon
2004 GMC Yukon
2005 GMC Yukon
2006 GMC Yukon
2007 GMC Yukon
2008 GMC Yukon
2009 GMC Yukon
2010 GMC Yukon
2011 GMC Yukon
2012 GMC Yukon
2013 GMC Yukon
2014 GMC Yukon
1998 Pontiac Firebird
1999 Pontiac Firebird
2000 Pontiac Firebird
2001 Pontiac Firebird
2002 Pontiac Firebird
2004 Pontiac GTO
2005 Pontiac GTO
2006 Pontiac GTO
1997 Universal Retrofit Universal Retrofit
1998 Universal Retrofit Universal Retrofit
1999 Universal Retrofit Universal Retrofit
2000 Universal Retrofit Universal Retrofit
2001 Universal Retrofit Universal Retrofit
2002 Universal Retrofit Universal Retrofit
2003 Universal Retrofit Universal Retrofit
2004 Universal Retrofit Universal Retrofit
2005 Universal Retrofit Universal Retrofit
2006 Universal Retrofit Universal Retrofit
2007 Universal Retrofit Universal Retrofit
2008 Universal Retrofit Universal Retrofit
2009 Universal Retrofit Universal Retrofit
2010 Universal Retrofit Universal Retrofit
2011 Universal Retrofit Universal Retrofit
2012 Universal Retrofit Universal Retrofit
2013 Universal Retrofit Universal Retrofit
2014 Universal Retrofit Universal Retrofit
2015 Universal Retrofit Universal Retrofit
2016 Universal Retrofit Universal Retrofit
2017 Universal Retrofit Universal Retrofit
2018 Universal Retrofit Universal Retrofit

Additional information

CamShafts for Texas Speed Engineering

220R 220/220,.600"/600"(110 LSA) (25-TSP220R6110, 220R 220/220,.600"/600"112 LSA) (25-TSP220R6112, 220R 220/220,.600"/600"114 LSA) (25-TSP220R6114, 224/228,.600"/.600",112 LSA (25-TSP224228R6112), 224R 224/224,.600"/.600 (110LSA) (25-TSP224R6110), 224R 224/224,.600"/.600 112LSA) (25-TSP224R6112), 224R 224/224,.600″/.600 114LSA) (25-TSP224R6114), 228/232, .600"/600". 112LSA (25-TSP228232-112), 228/232, .600"/600". 114LSA (25-TSP228232-114), 228R 228/228, .600"/.600 (110 LSA) (25-TSP228R6110), 228R 228/228, .600"/.600 (112 LSA) (25-TSP228R6112), 228R 228/228, .600"/.600 (114 LSA) (25-TSP228R6114), 233/239,. 600"/.600, 113 LSA (25-TSP233239-113), 233/239,.600"/600", 112 LSA (25-TSP233239-112), 244/248 Stroker Cam 615"/.615",112 LSA (Stroker Motors ONLY!) (25-tsp244248-112), 4.8/5.3 Stage 1 Turbo Cam 212/216 112 LSA (25-TSPTurbo1-3B), 4.8/5.3 Stage 2 Turbo Cam 214/220 112 LSA (25-TSPTurbo 2-3B), 4.8/5.3 Stage 3 Turbo Cam 218/224 113 LSA (25-TSPTurbo3-3B), 4.8/5.3 Stage 4 Turbo Cam 222/230 113 LSA (25-TSPTurbo4-3B), B.F.D. 5.3L Cathedral Cam (25-TSPBFD-53), B.F.D. 57L Cathedral Cam (25-TSPBFD-LS1), B.F.D. 6.0L Cathedral Cam (25-TSPBFD-60), Cleetus McFarland "Bald Eagle" Boost Cam; 227/234,.6xx"/.6xx" (25-TSPCATHBaldEagle-SC), Cleetus McFarland "Bald Eagle" N/a Cam: 227/234,. 6xx"/.6xx" (25-TSPCATHBaldEagle-NA), Cleetus Mcfarland Dumpster Fire-224/228 .600"/.600"114 LSA (25-tspdumpsterfirecam), Cleetus Stroker Cathedral Twin Turbo Cam (25-TSPSTR-CATHBaldEagle-TT), FastFWD LS4 HL 216/225,.600"/.600" 111 LSA (25-tspFastFWD), FastFWD LS4 V2 226/235,. 600"/.600", 111 LSA (25-TSPfastFWDV2), LS1/LS2 Stage 1 Turbo Cam 220/226 .600/.600 114 LSA (25tsp5.7CATSTG1), LS1/LS2 Stage 2 Turbo Cam 224/230 .600/.600 113 LSA (25-TSP5.7CATSTG2), LS1/LS2 Stage 3 Turbo Cam 228/234.620"/.600" 115 LSA (25-TSP5.7CATSTG3), Magic Stick 3 (MS3), 600"/.600 113LSA (25-TSPMS3113), Magic Stick 3 (MS3),. 600"/.600" 112 LSA (25-tspms3112), Magic Stick 4 (MS4),. 649/.600",111.5 LSA (25-TSPMS4), Stage 2 5.3 Truck Cam 212/218..600"/.600 (110LSA) (25-TSP212218R6110), Stage 2 5.3 Truck Cam 212/218..600"/.600 (112LSA) (25-TSP212218R6112), Stage 2 5.3 Truck Cam 212/218..600"/.600 (114LSA) (25-TSP212218R6114), Stage 3 5.3 Truck Cam 216/220..600"/.600 (112LSA) (25-TSP216220R6112), Stage 3 5.3 Truck Cam 216/220..600"/.600 (114LSA) (25-TSP216220R6114), Stage 4 5.3 Truck Cam 223/226,. 600"/600" (111 LSA) (25-TSP223226R6111), Texas Giant, 248/254, .615"/.615", 112 LSA (Stroker Motors ONLY!) 25-TSPTXGIANT112), Torquer V2,.600"/.600",113LSA (25-TSPTQRV2R6113), Torquer V4, 231/234.629"/615",111 LSA (25-TSPTQRV4), TorquerV2,.600"/.600",112 LSA (25-TSPTQRV2R6112), Tsunami V2 235/240,. 629"/615", 111 LSA (25-TSPTsunamiV2)

Texas Speed Pushrod Lengths

7.200" (25-7200-1), 7.225" (25-7225-1), 7.250" (25-7250-1), 7.275" (25-7275-1), 7.300" (25-7300-1), 7.325" (25-7325-1), 7.350" (25-7350-1), 7.375" (25-7375-1), 7.400" (25-7400-1), 7.425" (25-7425-1), 7.450" (25-7450-1), 7.475" (25-7475-1), 7.500 (25-7500-1), 7.525" (25-7525-1), 7.550" (25-7550-1)

Texas Speed Valve Spring Kit

TSP .750" Dual Spring Kit w/Two Piece Seat & Seal Titanium Retainer, PAC Springs (199-pacpol750springkit, TSP.660 Dual Spring Kit w/Integrated One-Piece Seat & Seal, Titanium Retainers PAC Springs (199-isspacpol660springkit), TSP.660 Dual Spring Kit w/Separate Two Piece Seat & Seal, Titanium Retainers PAC Springs (199-pacpol660springkit)

Optional Timing Chain Set

None, GM OEM LS2 Timing Chain ONLY (28-12646386), GM OEM LS2 Timing Chain Set – 1x Cam Gear (28-LS2Chainset), GM OEM LS2 Timing Chain Set – 4x Cam Gear (28-LS2ChainSet), Include C5R Timing Chain (67-KAT-7636), Rollmaster Double Row Timing Set – 1x Cam Gear (11-CS1185), Rollmaster Double Row Timing Set – 4x Cam Gear (11-CS1195), Rollmaster IWIS LS2 Style Performance Timing Chain (11-NA-SR60-2), Rollmaster IWIS Seamless LS C7R Timing Chain (11-NA-3SR60-2), Rollmaster Single Row Timing Set – 1x Cam Gear (11CS1180), Rollmaster Single Row Timing Set – 4x Cam Gear (11-CS1190)

Optional Oil Pump

GM High Performance Oil Pump (28-12710303), Melling High Pressure Oil Pump (122-MEL10295), Melling High Volume Oil Pump (122-MEL10296), No Thanks

Optional Pushrod Length Checker

Do Not Include, Include TSP Pushrod length checker 25-PRChecker)

Optional Crank Bolt & Gasket Kit

No Thanks, Include Crank Bolt / Gasket Kit w/ GM Bolt (28-CamGskKit), Include Crank Bolt/Gasket Kit w/ ARP Bolt (28-CamGskKitARP)

Optional Rocker Arm Trunnion Upgrade Kit

Do Not Include Rocker Arm Trunnion Upgrade Kit, Che LS/LT Trunnion Kit for Stock Rockers Bushings (212-CHETrunnion), Include TSP Rocker Arm Trunnion Upgrade Kit (25-TSPTrunnionUpgKit, Manton Bronze Bushing Trunnion Kit(169-LS-100-Kit)


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