Page 215 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Hi-Tech Pushrods By Application GM LS XD-A Adjustable Pushrods

One-piece, ball-type pushrods are made from .080" wall seamless 4130
chrome moly and are heat treated to a hardness of 60 on the Rockwell “C”
scale. Black oxide finished for strength and durability. Length is stencilled
on each pushrod. Sold individually or in sets of 16. For an individual part Engineered for GM LS engines, XD-A adjustable pushrods allow preload to
number, substitute -1 in place of the -16 suffix. Applications with -1 are be set or valve lash to be adjusted. Pushrods may be adjusted in .004"
available individually only. increments with a total range of .232" when using corresponding shim
Part No. Description Dia./Wall Thk. Length kit. Pushrods may be purchased in sets of 16, or complete with shim kit to
Small Block Chevrolet maximize adjustment range.
COM7940-16 -.600" Short Std. L. OE Hyd. Roller Lifter 5/16"/.080" 7.200"
COM7944-16 -.550" Short 5/16"/.080" 7.250" Part No. Length
COM7949-1 -.500" Short Retro. Std. L. Hyd. Roller Lifter 5/16"/.080" 7.300" COM896805-16 XD-A Adjustable Pushrod Set, 7.320"-7.552"
COM7950-1 -.450" Short 5/16"/.080" 7.350" COM896805-KIT XD-A Adjustable Pushrod Set And Shim Kit, 7.320"-7.552"
COM7963-16 -.100" Short 5/16"/.080" 7.700" COM896806-16 XD-A Adjustable Pushrod Set, 7.530"-7.762"
COM7970-16 -.050" Short 5/16"/.080" 7.750"
COM7972-16 Std. Length. Small Block Chevy 5/16"/.080" 7.800" COM896806-KIT XD-A Adjustable Pushrod Set And Shim Kit, 7.530"-7.762"
COM7974-16 +.050" Long 5/16"/.080" 7.850" COM896807-16 XD-A Adjustable Pushrod Set, 7.740"-7.972"
COM7993-16 +.100" Long 5/16"/.080" 7.900" COM896807-KIT XD-A Adjustable Pushrod Set And Shim Kit, 7.740"-7.972"
COM7994-16 +.150" Long 5/16"/.080" 7.950" COM896808-16 XD-A Adjustable Pushrod Set, 7.950"-8.182"
COM7995-16 +.200" Long 5/16"/.080" 8.000"
COM7996-16 +.250" Long 5/16"/.080" 8.050" COM896808-KIT XD-A Adjustable Pushrod Set And Shim Kit, 7.950"-8.182"
COM7997-16 +.300" Long 5/16"/.080" 8.100" COM896809-16 XD-A Adjustable Pushrod Set, 8.160"-8.392"
COM7913-16 Std. Length Small Block Chevy 3/8"/.080" 7.800" COM896809-KIT XD-A Adjustable Pushrod Set And Shim Kit, 8.160"-8.392"
COM7984-16 +.100" Long 3/8"/.080" 7.900"
Big Block Chevrolet COM896801 XD-A Adjustable Pushrod Shim Kit Only
COM7931-1 Std. Length Intake 3/8"/.080" 8.280"
COM7941-16 Std. Length Exhaust 3/8"/.080" 9.250" Hi-Tech Checking Pushrods
COM7954-16 Std. Length Set, 8 Ea. COM7931/COM7941 3/8"/.080" 8.275"/9.250"
COM7969-16 +.100" Long Intake 3/8"/.080" 8.380" Pushrod length is crit i cal when figuring rocker arm ge om e try. Easily read,
COM7979-8 +.100" Long Exhaust 3/8"/.080" 9.350" black oxide-fin ished check ers work in the same manner as micrometers,
COM7982-16 +.100 Long Set, 8 Ea. COM7969/COM7979 3/8"/.080" 8.380"/9.350" each turn equals .050".
COM7951-1 Std. Length Tall Deck Intake 3/8"/.080" 8.680"
COM7961-1 Std. Length Tall Deck Exhaust 3/8"/.080" 9.650"
Std. Length Tall Deck Set, 8 Ea.
COM7964-16 3/8"/.080" 8.680"/9.650" Part No. Description From Length To Length
COM7951/COM7961
COM7968-16 +.100" Long Tall Deck Intake 3/8"/.080" 8.780" COM7701-1 Length Checker 5.800" 6.800"
COM7978-1 +.100" Long Tall Deck Exhaust 3/8"/.080" 9.750" COM7702-1 Length Checker 6.800" 7.800"
Small Block Ford COM7703-1 Length Checker 7.800" 8.800"
COM7929-16 Std. Length 221-302 1962-69 5/16"/.080" 6.800" COM7704-1 Length Checker 8.800" 9.800"
COM7930-16 +.050" Long 221-302 1962-69 5/16"/.080" 6.850"
COM7933-16 +.100" Long 221-302 1962-69 5/16"/.080" 6.900" COM7705* Master Checking Kit 5.800" 9.800"
COM7930-16 Std. Length 255-302 1968-85 5/16"/.080" 6.850" COM7709-1 Length Checker With 5/16" Cup End 6.800" 7.800"
COM7935-1 +.100" Long 255-302 1968-85 5/16"/.080" 6.950" COM7711-1 Length Checker With 5/16" Cup End 7.800" 8.800"
COM7997-16 -.050" Short 351W 1969-78 5/16"/.080" 8.100" COM7719-1 Length Checker With 5/16" Cup End 8.800" 9.800"
COM7965-16 Std. Length 351W 1969-78 5/16"/.080" 8.150"
COM7966-16 +.050" Long 351W 1969-78 5/16"/.080" 8.200" *Contains one each of COM7701, COM7702, COM7703, COM7704.
COM7945-1 Std. Length 351C And Cobra Jet 1970-74 5/16"/.080" 8.400"
COM7975-16 +.050" Long 351C And Cobra Jet 1970-74 5/16"/.080" 8.450" Pushrod Length Checker
COM7976-16 Std. Length Boss 351 1971-72 5/16"/.080" 8.500"
COM7932-16 Std. Length Boss 351 1971-72 3/8"/.080" 8.500" Easily lay out and de ter mine correct pushrod length. Made from a thin
Big Block Ford wall 5/16" pushrod, cut and threaded, with a 5/16" ball on each end, to
COM7976-16 -.050" Short 429-460 1972-78 5/16"/.080" 8.500"
COM7948-16 Std. Length. 429-460 1972-78 5/16"/.080" 8.550" provide over 1" of travel.
COM7977-1 +.050" Long 429-460 1972-78 5/16"/.080" 8.600"
COM7992-1 -.100" Short 429-460 1972-78 3/8"/.080" 8.450"
COM7934-16 Std. Length. 429-460 1972-78 3/8"/.080" 8.550" Part No. Description From Length To Length
COM7951-1 Std. Length. 429-460 1969-71 3/8"/.080" 8.680"
COM7968-16 +.100" Long 429-460 1969-71 3/8"/.080" 8.780" COM7901-1 Individual Pushrod Length Checker 7.500" 8.700"
Chrysler/Dodge COM7902-1 Individual Pushrod Length Checker 8.500" 9.800"
COM7914-16 Std. Length 5.7/6.1L Hemi 5/16"/.080" COM7903-1 Individual Pushrod Length Checker 9.700" 11.000"
Small Block Chrysler COM7905-1 Individual Pushrod Length Checker 6.125" 7.500"
COM7956-16 -.050" Short 273-360 “A” 5/16"/.080" 7.450"
COM7957-16 Std. Length 273-360 “A” 5/16"/.080" 7.500" COM7900** Master Pushrod Checking Kit 6.125" 11.500"
COM7958-16 +.050" Long 273-360 “A” 5/16"/.080" 7.550" **Contains one each of COM7901, COM7902, COM7903, COM7904, COM7905.
Big Block Chrysler
COM7977-1 +.050" Long 383-400 “B” 5/16"/.080" 8.600"
COM7934-16 Std. Length 383-400 “B” 3/8"/.080" 8.550"
COM7923-16 Std. Length 413-440 “RB” 3/8"/.080" 9.300"
COM7979-8 +.050" Long 413-440 “RB” 3/8"/.080" 9.350"

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