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Pistons

Ported Heads

Ported LT-1 Heads

Ported LT1 heads have a 15 angle valve job (radius cut). Long and short side reworked, roof raised and guide thinned. Chambers reshaped and valves unshrouded to enhance swirl and exhaust scavaging. Viton, teflon seal for better oil control. Spring pressure checked and installed to correct height. Heads checked for cracks and warpage. (Aftermarket springs or spring pressure and installed height change upon request).

Heads Ported Heads LT1 Heads LT4 Heads LS1 Heads Chevy Heads Ford Heads Custom Head Work

Stock LT-1 Head                                             WSP Ported LT-1 Head Port: 170cc                                                       Port: 176cc Chamber: 58cc                                                 Chamber: 59cc Valve sizes: 1.94/1.50                                       Valve sizes: 1.94/1.50 Valve lift:        Intake:           Exhaust:            Valve lift:          Intake:          Exhaust: 0.100             72                   52                      0.100              67                 46 0.200             129                 100                    0.200              129               103 0.300             180                 130                    0.300              189               140 0.400             213                 142                    0.400              235               173 0.500             214                 149                    0.500              249               181 0.600             215                 154                    0.600              247               184            I/E Split 67%                                                  I/E Split 74%

Valvetrain Valve Spring Retainers Titanium Retainers Chrom Moly Retainers 7 Degree Retainers 10 Degree Retainers Solid Roller Lifters Pop Up Lifters Vertical Bar Lifters Chevy Lifters Ford Lifters Mopar Lifters Pontiac Lifters Olds Lifters

Intake Ported Intake Intake Machining Intake Spacer Carburetor Spacer Intake Insert Intake "Turtle"

Ported LT-4 Heads

Ported LT4 heads have a 15 angle valve job ( radius cut). Long and short side reworked, roof raised and guide thinned. Chamber reshaped and valves unshrouded to enhance swirl and exhaust scavanging. Viton, teflon seal for better oil control. Spring pressure checked and installed to correct height. (Aftermarket springs or spring pressure and installed height change upon request).

EFI ECM/PCM Reprogramming   LT1 ECM/PCM Reprogramming   LT4 ECM/PCM Reprogramming   LS1 ECM/PCM Reprogramming   OBD II Reprogramming

Stock LT-4 head                                     WSP Ported LT-4 head Port: 195 cc                                             Port: Chamber: 56cc                                        Chamber: Valve sizes: 2.00/1.55                              Valve sizes: 2.00/1.55 Valve Lift:        Intake:        Exhaust:          Valve Lift:          Intake:           Exhaust: 0.100               78              67                     0.100                 0.200               147            109                   0.200 0.300               197            133                   0.300                       Coming Soon!!! 0.400               230            159                   0.400 0.500               250            172                   0.500 0.600               243            177                   0.600            I/E Split 69%                                                 I/E Split

Transmissions GM Transmissions 200-R4 700-R4 TH 350 TH 375 TH 400 4L80E   Ford Transmissions AOD AODE 4EOD C4 C6 Torqushift   Dodge Transmissions 47RH 47RE 48RE Torquflit   Transmission Parts

Ported LS1 Heads

Ported LS1 heads have a 15 angle valve job (radius cut). Long and short side radius reworked, roof raised and guide thinned. Chambers reshaped and valves unshrouded to enhance swirl and exhaust scavaging. Viton, teflon seal for better oil control. Spring pressures checked and installed to correct height. (Aftermarket springs or spring pressure and installed height changed upon request). LS1 is a 17 degree valve head requiring a different port job than a 23 degree head (LT1-LT4, early chevy).

Classifieds Parts For Sale Clearance Items Overstock Items Used Parts New Parts Track Adhesive

Stock LS1 Head                                     WSP Ported LS1 Head Port: 204cc                                             Port: Chamber: 65cc                                       Chamber: Valve Sizes: 2.00/1.55                            Valve Sizes: 2.00/1.55 Valve Lift:      Intake:      Exhaust:           Valve Lift:         Intake:           Exhaust: 0.100             83            55                      0.100 0.200             134          98                      0.200 0.300             189          130                    0.300                  Coming Soon!!! 0.400             222          156                    0.400 0.500             240          175                    0.500 0.600             252          182                    0.600          I/E Split 61%                                                    I/E Split

Custom Head Porting Service Available

Custom head porting available upon request, for Chevy, Ford, street or race heads. Full port jobs to basic head clean up. Valve job (15 angle) included with every port job and Viton seals included. Port jobs tailored to your application. We do mean custom, valve guide changes ( guide diameter), spring seat diameter changes, intake face recut, angle mill or flat mill, head bolt holes enlarged and exhaust redrilled for different header flange. All port jobs come with a flow sheet before and after the port job. Pricing varies on the port job, so call or email for pricing.

EFI