Valve Spring Tech 101 The valve springs on a modified engine are subjected to extreme stress from high RPM operation, high … read more 28th Feb 2020 Motorsports Unlimited
Machined Kits The days of having 6 to 10 machine shops in one city is no longer an option. Welcome to the new age … read more 21st Nov 2019 Lance Stillwell
What to know about camshaft selection A camshaft upgrade is an outstanding way to add some horsepower numbers to your dyno sheet and shave … read more 14th Nov 2019 Lance Stillwell
Description Description Description: Chrome Moly 1.55 - 1.630" OD Spring Type" Dual Stem Size: Any Install Height: Standard Lock Degree: 10 Degree Fits Erson Springs: 3500, 3600, 3800, 3840, 3850, 3860, 3870, 3875 Sold In Sets Of 16 View AllClose
Add to Cart Quick view 507 - PBM Performance - CHROME - MOLY 10* RETAINERS - fits 1.55 - 1.630" O.D. Dual Spring - Any Valve Stem (1.510"x.1.130"x.710") - +.100 Install Height MSRP: Now: $75.00 Was: Description: Chrome Moly 1.55 - 1.630" OD Spring Type" Dual Stem Size: Any Install Height: +.100 Lock Degree: 10 Degree Fits Erson Springs: 3050, 3500, 3600, 3800, 3840, 3850, 3860,...
Add to Cart Quick view 506 - PBM Performance - CHROME - MOLY 10* RETAINERS - fits 1.437 - 1.55" O.D. Dual Spring - Any Valve Stem (1.450"x.1.060"x..710") - Std Install Height MSRP: Now: $75.00 Was: Description: Chrome Moly 1.437 - 1.550" OD Spring Type" Dual Stem Size: Any Install Height: Standard Lock Degree: 10 Degree Fits Erson Springs: 3100, 3150, 3300, 3325, 3400, 3425, 3450 ...
Add to Cart Quick view 504S - PBM Performance - CHROME - MOLY 7* RETAINERS - fits 1.430 - 1.550" O.D. Dual Spring - 3/8" Valve Stem (1.445"x.1.060"x..710") - Std Install Height MSRP: Now: $85.00 Was: Description: Chrome Moly 1.430 - 1.550" OD Spring Type" Dual Stem Size: 3/8" Install Height: Std Lock Degree: 7 Degree Fits Erson Springs: 3050, 3100, 3150, 3300, 3325, 3400, 3425, 3450,...
Add to Cart Quick view 502S - PBM Performance - CHROME - MOLY 7* RETAINERS - fits 1.430 - 1.550" O.D. Single/Dual Spring - 11/32" Valve Stem (1.440"x.1.060"x..710") - Std Install Height MSRP: Now: $75.00 Was: Description: Chrome Moly 1.430 - 1.550" OD Spring Type" Single/Dual Stem Size: 11/32" Install Height: Std Lock Degree: 7 Degree Fits Erson Springs: 3050, 3100, 3150, 3200, 3325, 3400,...
Add to Cart Quick view 510 - PBM Performance - Titanium 10* RETAINERS - fits 1.55 - 1.630" O.D. Dual Spring - Any Valve Stem (1.510"x1.170"x.755") - +.095 Install Height MSRP: Now: $285.00 Was: Description: Titanium 1.55 - 1.630" OD Spring Type" Dual Stem Size: Any Install Height: +.095 Lock Degree: 10 Degree Fits Erson Springs: 3870 Sold In Sets Of 16