Pro Action SB Chevy Head

Racing Aluminum - SBC

PRO 12^o Aluminum High-Port

112 53 265 H-SDN PRO 12^o 'H' Series, Intake Runner 265cc, Inlet Valve 2.180
112 53 285 H-SDN PRO 12^o 'H' Series, Intake Runner 285cc, Inlet Valve 2.200
112 53 300 H-SDN PRO 12^o 'H' Series, Intake Runner 285cc, Inlet Valve 2.250
112 53 330 H-SDN PRO 12^o 'H' Series, Intake Runner 285cc, Inlet Valve 2.250

PRO 14^o 'V' SERIES - Offset Valve Race Heads

114 53 265 V_SDN -12 rockers, 10^o face, 265cc runner, 2.180" inlet, 1.620" exh.
114 62 265 V_SDN 18^o rockers, 5^o face, 265cc runner, 2.180" inlet, 1.620" exh.
114 63 265 V_SDN -12 rockers, 5^o face, 265cc runner, 2.18/2.20" inlet, 1.620" exh.
114 53 285 V_SDN -12 rockers, 10^o face, 285cc runner, 2.200" inlet, 1.620" exh.
18^o rockers, 5^o face, 285cc runner, 2.200" inlet, 1.620" exhaust.
-12 rockers, 5^o face, 285cc runner, 2.200" inlet, 1.620" exhaust.

PRO 14^o OUTLAW - Sprint Car Race Heads

-12 rockers, 10^o face, 265cc runner, 2.180" inlet, 1.625" exhaust.
114 62 265SDN 18^o rockers, 5^o face, 265cc runner, 2.180/2.200" inlet, 1.625" exh.
114 53 285SDN -12 rockers, 10^o face, 285cc runner, 2.200" inlet, 1.625" exh.
114 53 585SDN -12 rockers, 10^o face, 285cc runner, 2.250" inlet, 1.625" exh.
114 62 585SDN 18^o rockers, 5^o face, 285cc runner, 2.250/2.200" inlet, 1.625" exh.
     -12 rockers, 10^o face, 265cc runner, 2.180/2.200" inlet, 1.625" exh.
114 62 265S     18^o rockers, 5^o face, 265cc runner, 2.180/2.200" inlet, 1.625" exh.
    -12 rockers, 10^o face, 285cc runner, 2.250/2.200" inlet, 1.625" exh.
114 62 585S     18^o rockers, 5^o face, 285cc runner, 2.250/2.200" inlet, 1.625" exh.

PRO 14^o Racing Heads - Circle Track

18^o rockers, 5^o face, 230cc runner, As Cast - no valve job
114 62 254 18^o rockers, 5^o face, 254cc runner, 2.135/2.150" inlet, 1.600/1.625" exh.
114 62 265 18^o rockers, 5^o face, 265cc runner, 2.180" inlet, 1.625" exh.

PRO 14^o Race Heads - Drag Race
All 18^o rockers, 5^o face.

Intake runner 285cc, 2.200" inlet, 1.625" exhaust.
Intake runner 305cc, 2.300" inlet, 1.610" exhaust.
114 62 530 Intake runner 305cc, 2.250" inlet, 1.625" exhaust.
114 62 585 Intake runner 285cc, 2.250" inlet, 1.625" exhaust.

PRO 23^o Raised Runner Racing Heads

As cast - 222cc Intake runner.
123 62 256 10^o face, 256cc runner, 2.125" inlet, 1.625" exhaust.
Spread Port version of 123 62 256 + head rolled 2^o for 21^o valve angle.

23^o Pro Aluminum Lightning
All - No rocker offset, 10^o face.

180cc runner, 64cc chamber - as cast chamber & ports
123 2000 80A 180cc runner, 72cc chamber - as cast chamber & ports
123 4000 00A 200cc runner, 64cc chamber - as cast chamber & ports
123 2000 00A 200cc runner, 72cc chamber - as cast chamber & ports
123 4000 20A 220cc runner, 64cc chamber - as cast chamber & ports
123 2000 20A 220cc runner, 72cc chamber - as cast chamber & ports
220cc runner, 64cc chamber - CNC chambers & as cast ports
123 2600 20A 220cc runner, 72cc chamber - CNC chambers & as cast ports
123 4622 20A 228cc runner, 64cc chamber - 100% CNC chambers, bowls & ports
228cc runner, 72cc chamber - 100% CNC chambers, bowls & ports
123 4000 35A 235cc runner, 64cc chamber - as cast chamber & ports
123 2000 35A 235cc runner, 72cc chamber - as cast chamber & ports
123 4600 35A 235cc runner, 64cc chamber - CNC chambers & as cast ports
123 2600 35A 235cc runner, 72cc chamber - CNC chambers & as cast ports
123 4622 35A 242cc runner, 64cc chamber - 100% CNC chambers, bowls & ports
242cc runner, 72cc chamber - 100% CNC chambers, bowls & ports

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Yancer Specialty Inc.