Products

Valve Spring Specifications

Part Number

Size

Pressure

Material

Coil Bind

Rate

Max. Recom.
Lift

AFR-8000 1.540 OD 225# @ 1.950 Chrome Silicon 1.155 550 710
.800 ID 600# @ 1.250
AFR-8002 1.550 OD 170# @ 1.980 Chrome Silicon  1.180 475 650
.725 ID 430# @ 1.430
AFR-8003 1.560 OD 250# @ 1.980 Chrome Silicon with 1.160 515 740
.740 ID 610#  @1.280 Electroplate Polishing
AFR-8004 1.290 OD 150# @1.740 Comp Cams 1.010 397 630
.650 ID 380# @ 1.160 #921 Ovate Wire
AFR-8016 1.550 OD 140# @1.930 Chrome Silicon 1.140 410 600
.750 ID 365# @1.380
AFR-8017 1.290 OD 135# @ 1.800 Premium Grade Chrome 1.050 360 600
.685 ID 340# @ 1.230 Silicon
AFR-8019 1.270 OD 155# @1.810  Premium Grade Chrome 1.080 428  650
.645 ID 412# @ 1.210 Silicon
AFR-8020 1.437 OD 120# @1.800 Chrome 1.090 325 550
.720 ID 300# @ 1.250 Silicon
AFR-8021 1.640 OD 250# @ 2.000 Premium Grade Chrome 1.070 645 800
.860 ID 800# @ 1.150 Silicon
AFR-8022 1.640  OD 320# @ 2.040 Premium Grade Chrome 1.150 645 840
.860 ID  870#@ 1.190 Silicon
AFR-8023 1.580 OD 235# @1.950 Premium Grade Chrome 1.170 535 730
.832 ID 610# @1.250 Silicon
AFR-8031 1.625 OD 255# @ 1.950 Chrome Silicon with 1.130 540 750
.768 ID 633# @ 1.250 Electroplate polishing

Valve spring pressures may vary plus or minus 5 percent. It is the customers responsibility to verify springs are correct for his application.

IMPORTANT:

Break in cam per cam manufacturers specifications. This can be critical for solid flat tappet cams using AFR spring #8016.




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