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FAST 301275 Magnet Crank Trigger Kit Small Block Chevy 7-Inch Balancer

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1974-91 + 223 more models)

Manufacturer

Part Number

301275
Sale Price

$470.95

Estimated ship date Saturday, November 28

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Fitment guaranteed

Fitment guaranteed

Product Details

The FAST 301275 Magnet Crank Trigger Kit is engineered for Small Block Chevrolet engines equipped with a 7-inch harmonic balancer, delivering the timing precision demanded by high-performance street and racing applications. Utilizing a digital Hall-effect pick-up sensor, this kit offers significantly improved timing accuracy and electromagnetic noise immunity compared to traditional two-wire variable reluctance (VR) sensors.

Key Features:

  • 1/4-degree timing accuracy maintained up to 13,000+ RPM for consistent ignition performance at any engine speed
  • Digital Hall-effect 3-wire pick-up provides superior noise rejection compared to conventional 2-wire VR designs
  • Fully operational across a wide voltage range — 7.5V to 30V DC — with no degradation in performance
  • Trigger wheel crafted from billet aluminum with black anodized finish and embedded Samarium cobalt magnets for durability in harsh racing environments
  • Outputs a clean square-wave signal compatible with ignition boxes and EFI systems including FAST EZ-EFI 2.0, XFI Sportsman, and XFI 2.0
  • Built-in LED indicator simplifies static timing setup and on-car diagnostics
  • OEM-quality braided wire wrap protects the pick-up pigtail; harness terminates with a weatherproof Deutsch connector
  • Compatible with all major brands of ignition systems — not limited to FAST products
  • Kit includes all necessary mounting hardware and wiring harness — complete installation package

The FAST 301275 crank trigger kit sets the benchmark for crankshaft timing accuracy, making it an ideal upgrade for race engines, high-revving street builds, and any application where precise ignition timing is critical to performance and engine longevity.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1974-91, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95, K3500 1979-86, 1988-95, C15/C1500 Pickup 1967-69, 1974 + 219 more models

C.A.R.B. Exempt?

No

Grade

Performance

Plug and Play w/ FAST EFI Systems?

Yes

Trigger Wheel Thickness

0.375

Trigger Wheel I.D.

1.946

Harness Termination/Connection Type

3 Pin Deutsch

Trigger Wheel O.D.

7

Lead/Harness Length

72

Trigger Wheel Material

Aluminum

Trigger Wheel Color

Black

Pickup Style

Digital Hall-Effect

Fitment/Engine Family

SBC w/ 7" Balancer

Mating Harness/Connector Included?

Yes

Pre-Terminated Leads/Harness?

Yes

Bracket Material

Aluminum

Bracket Color

Black

Hardware Included

Yes

Pickup Included

Yes

Title

Magnet Crank Trigger Kit for Chevrolet Small Block w/ 7 Inch Harmonic Balancer

Easier than expected, 917-612 w/gear to fit the AX4S should go on your drawing board... Please

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