BTR .625" Lift Conical LS7 Valve Spring Kit - Stock Valve Guides

BTR .625" LIFT CONICAL LS7 VALVE SPRING KIT - STOCK VALVE GUIDES - SK021/0545
BTR is proud to introduce our new SK021 conical style valve spring kit. This is a great option for camshafts using less than .625" valve lift. This budget friendly valve spring kit was designed to use our conical locator, and BTR offset locks, but use the OEM LS7 retainer. Features include tumble polishing for reduced stress risers and a quality appearance.
The BTR SK021 valve spring kit works for LS7 applications, and whether you're looking for longevity in street applications, or for use in single valve spring only limited racing classes, BTR has you covered. As with all BTR valve springs, they have been extensively tested on our in house Spintron machine and engine dyno.
Kit includes:
- SP014-1 valve spring (QTY 16)
- VS LS KIT valve seal set
- SL505045CON-16 valve spring locator set (0.045" thickness / 0.505" ID for stock guides)
- SS030-1 valve spring shims for exhaust (QTY 8)
- VL78MMBL-.075 valve locks for intake (QTY 8 pairs)
- VLM78MMLSBL+.050 valve locks for exhaust (QTY 8 pairs)
Spring specs:
160 LB SEAT @ 1.875" INSTALL HEIGHT
395 LB OPEN @ 1.225"
COIL BIND @ 1.165"
NOTE - BTR does not recommend single wire conical or beehive springs with roller rockers due to the extra mass causing loss of valve train stability, or the use of a higher ratio rocker as it could possibly cause a coil bind issue. If you have a specific combination of valvetrain parts you are needing to use a roller rocker on, please call in to our sales team for clarification.