1st gen Cummins 6bt VE 366 spring & 12 HD Valve Springs
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1989-1993 Governor Spring plus 60lb over stock Valve Springs (6bt kit)

 

3200RPM Governor Spring plus Genuine Cummins #3916691 60lb over stock Valve Springs

For the 1989-1993 12v 6BT

Twelve (12) Cummins 3916691 HD valve springs & a 3200rpm gov spring.

The seat pressure on these springs is ~150 lbs at the installed height of 1.950 x 1.69 rocker ratio = 253.5 lbs
Cam nose pressure is 210lbs x 1.69 rocker ratio = 359 lbs

These heavy duty valve springs are required if you plan on running any application between 3200 - 3800 rpm or up to 48 psi boost and/or also required for the safety of your engine if you install an exhaust brake.

Don't be fooled by people selling cheap GSK’s and valve springs out there. A broken spring can take out an engine.

  • Item #: 6bt VE 366 & 12 HD Springs
  • Manufacturer: Cummins

1st gen Cummins 6bt VE 366 spring & 12 HD Valve Springs

Price: $100.00
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