AV&V™ Compression Release Valves
AV&V™ compression release valves are easier to install due to their short thread section. (# JCR10A & JCR10B). You don’t need to machine the heads as deep as if you were using O.E.M. style CR’S.
- O.E.M. style also available (JCR10D)
- Ideal for stock replacement
- Also their high-temperature resistant knobs are charcoal colored for a better match with texture black or silver heads.
| Part Number | Protrusion | Thread Section | Thread | Note |
|---|---|---|---|---|
| JCR 10A | 1.050" | .350" | M10x1 | Mostly Evo’s® • Short protrusion • Short thread section |
| JCR 10B | 1.050" | .350" | M10x1 | All mostly Twin Cams® • Short protrusion • Short thread section |
| JCR 10D | 1.250" | .500" | M10x1 | O.E.M. Style • Long protrusion • Long thread section |
JCR 10A
JCR 10B
JCR 10D