COMP Cams Valve Locks 3/8in Four Groove

Marsoni

M251S

$37.91

Get it in 3 business days with 1 day shipping. Friday, May 29

COMP Cams Valve Locks 3/8in Four Groovelock angle and 3 8" valve stem size are a perfect replacement lock for stock engine rebuilds. They are recommended only for street Applications with lighter valve spring loads. It is critically important to make sure valve locks match the valve size. There should always be a small gap between the two halves of the lock when they are properly positioned on the valve stem. If the two halves fit together without a gap, they are too large. If the locks

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Almost perfect. Easy to screw apart and insert wires to both the back and to the front, or do what I did and screw the wire onto the back and then use a banana plug for the front. My only complaints are that the back piece sits off the wall a little, so the plate doesn't fit flat and tight against the wall. It leave a little gap around the edges. The other complaint is that the back piece has some flex in it, which makes me nervous when I push plugs into and out of it. I think it probably will hold up fine, but it feels a little oogy to push banana plugs into it and see it flex. Comes with all the hardware needed. Just need a philips screwdriver and wire cutters and you're good to go. Super easy to use, and way better than the spring loaded connections it replaced.

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Reviewed in the United States on July 12, 2017

Verified Purchase

ulisses

Belleville, US

★★★★★ 5

Built well

Style: 4-Speaker

Still working great no issues with sound quality.

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Reviewed in the United States on April 17, 2026

Verified Purchase

LTD

New York, US

★★★★★ 5

Really good wall plates

Style: 1-Speaker

These plates came on time, packaged well and are "doing the trick". The plates, while fairly light-weight are perfect for my new system. They installed into the junction boxes very easily, hold the wires snugly and the banana plugs are perfect for my usage. If you need a nice, easy to install, good quality, wall plate, I would highly recommend these.

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Reviewed in the United States on November 30, 2025

Verified Purchase

J. ILG

Fort Morgan, US

★★★★★ 5

Is probably heaver than you think

Style: 4-Speaker

Quality is decent, weight is heavy, threads of the screw portion seem of quality

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Reviewed in the United States on March 18, 2026