Gov Spring Numbers
#1
#2
Here are the part numbers and different rpm defuel specs for some springs.... there are alot more. You can even get a spring to fuel up to 5200 rpm.
1-464-650-386 spring = 2800rpm spring *Stock*
1-464-650-366 spring = 3200rpm spring *Best Over All Mod*
1-464-650-374 spring = 3800rpm spring *May need to trim to Stock Length*need 60 lbs valve springs*
1-464-650-354 srping = 4200rpm spring *May need to trim to Stock Length*need 60 lbs valve springs*
1-464-650-386 spring = 2800rpm spring *Stock*
1-464-650-366 spring = 3200rpm spring *Best Over All Mod*
1-464-650-374 spring = 3800rpm spring *May need to trim to Stock Length*need 60 lbs valve springs*
1-464-650-354 srping = 4200rpm spring *May need to trim to Stock Length*need 60 lbs valve springs*
Last edited by RSWORDS; 08-14-2008 at 06:13 AM.
The following 5 users liked this post by RSWORDS:
1stgenjunkie (02-05-2010),
BC847 (11-16-2008),
C/PRD/ (09-08-2008),
ez_lle71 (08-15-2008),
welderboy250 (08-14-2008)