2.7L V6 Valvetrain

From OpenGK
Revision as of 21:57, 7 December 2025 by Chase206 (talk | contribs) (Created page with "The purpose of this article is to explore other valvetrain options using stock components from other makes and/or models. Now that Ferrea no longer sells a complete kit we need to look to other options. For camshafts please see Camshaft Specifications. The following table assumes you use the OEM valve retainer and keepers and maintain the OEM 34.5mm installed spring height. Stock lift is 8mm and lift of the commonly used Crower .349-.351" regrind is 8.9mm. {| class=...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

The purpose of this article is to explore other valvetrain options using stock components from other makes and/or models. Now that Ferrea no longer sells a complete kit we need to look to other options. For camshafts please see Camshaft Specifications.

The following table assumes you use the OEM valve retainer and keepers and maintain the OEM 34.5mm installed spring height. Stock lift is 8mm and lift of the commonly used Crower .349-.351" regrind is 8.9mm.

2.7L V6 Valve Spring Comparison
Description Coil Bind Height Press. @34.5mm Installed Height Press. @8mm Lift Press. @8.9mm Lift Notes
OEM 2.7L Delta 23.8mm 45 lbs 100-105 lbs 110-115 lbs
OEM 3.5L Sigma ? ? ? ? To be determined
BC1260 21.85mm 70 lbs 140 lbs 150 lbs
BC1220 22.86mm 90 lbs 175 lbs 185 lbs Spring base in cyl head needs machining
Retrieved from "https://opengk.org:443/index.php?title=2.7L_V6_Valvetrain&oldid=971"