Page 291 - 2018 Master Catalog
P. 291

SEVERE DUTY® EXHAUST VALVES
              Small Block Chevy
              •   XH-428 Stainless Exhaust Material  •   Swirl Polished
              •   Chrome Stems            •   Fully Machined
              •   Hard Tips
                           HEAD           INSTALLED   O / A   TIP      UNDERHEAD             SEAT    TOP OF   WGT/
              PART NO. TYPE  DIA.  STEM DIA.  HEIGHT  LENGTH  LENGTH  ANGLE / RADIUS  MARGIN  WIDTH  HEAD    GRAMS

               11751-8  Exh.  1.600  .3415  .200 Longer  5.165  .290    15° x 1/2”  .090     .100    9° Dish  110

              SEVERE DUTY® “PRO FLO” VALVES
              Small Block Chevy
              •   XH-428 Stainless Exhaust Material  •   NK-844 Stainless Intake Material
              •   Chrome Stems            •   Swirl Polished and Fully Machined
              •   Hard Tips               •   Improved Flow with “Pro Flo” Underhead
                           HEAD           INSTALLED   O / A   TIP      UNDERHEAD             SEAT    TOP OF   WGT/
              PART NO. TYPE  DIA.  STEM DIA.  HEIGHT  LENGTH  LENGTH  ANGLE / RADIUS  MARGIN  WIDTH  HEAD    GRAMS

               11823-8  Exh.  1.600  .3415  .100 Longer  5.036  .250  Pro Flo: 12° x 3/8”  .085  .080  7° Dish  100
               11882-8  Int.  2.020  .3415  .100 Longer  5.011  .250  Pro Flo: 12° x 3/8”  .050  .080  7° Dish  115



              SEVERE DUTY® VALVES - STOCK 3/8” STEM DIA.
              Big Block Chevy
              •   XH-428 Stainless Exhaust Material  •   NK-844 Stainless Intake Material
              •   Chrome Stems            •   Swirl Polished and Fully Machined
              •   Hard Tips
                           HEAD           INSTALLED   O / A   TIP      UNDERHEAD             SEAT    TOP OF   WGT/
              PART NO. TYPE  DIA.  STEM DIA.  HEIGHT  LENGTH  LENGTH  ANGLE / RADIUS  MARGIN  WIDTH  HEAD    GRAMS


               11562-8  Int.  2.250  .3720  Stock    5.218    .220      10° x 3/8”  .050     .080    7° Dish  149
               11524-8  Int.  2.250  .3720  .100 Longer  5.325  .220  Pro Flo: 12° x 7/16”  .065  .080  7° Dish  153


              EXTREME DUTY & MARINE VALVES - STOCK 3/8” STEM DIA.
              Big Block Chevy
              •   XH-432 XtremeAlloy Exhaust Material  •   NK-844 Stainless Intake Material
              •   Chrome Stems            •   Swirl Polished and Fully Machined
              •   Hard Tips
                           HEAD           INSTALLED   O / A   TIP      UNDERHEAD             SEAT    TOP OF   WGT/
              PART NO. TYPE  DIA.  STEM DIA.  HEIGHT  LENGTH  LENGTH  ANGLE / RADIUS  MARGIN  WIDTH  HEAD    GRAMS

               11587-8  Exh.  1.880  .3715  Stock    5.354    .220      10° x 3/8”  .065     .100    6° Dish  139


              SEVERE DUTY® VALVES - 11/32” STEM DIAMETERS
              Big Block Chevy
              •   XH-428 Stainless Exhaust Material  •   NK-844 Stainless Intake Material
              •   Chrome Stems            •   Swirl Polished and Fully Machined
              •   Hard Tips
                           HEAD           INSTALLED   O / A   TIP      UNDERHEAD             SEAT    TOP OF   WGT/
              PART NO. TYPE  DIA.  STEM DIA.  HEIGHT  LENGTH  LENGTH  ANGLE / RADIUS  MARGIN  WIDTH  HEAD    GRAMS

               11843-8  Exh.  1.880  .3415  Stock    5.422    .250      10° x 3/8”  .075     .085    6° Dish  122
               11815-8  Exh.  1.880  .3415  .100 Longer  5.522  .250    10° x 3/8”  .075     .085    6° Dish  125
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