Bishop International Inc. TX 75203

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David A

I bought a head from them on Ebay and after receiving it checked the valve lash and every one of the exhaust valves was .014" beyond the maximum allowable. I called and they agreed to refund half the cost and send me any tappets I needed to resolve the issue. After getting under the cams I found that two of the valves would not be fixable by changing the tappets alone. I called back and they decided I was being "too difficult" they refunded me the rest of my money and told me to go elsewhere. I have since had the head checked at a machine shop in the hopes of salvaging it... on top of them utterly screwing up basic valve work they also sold me a cracked head. It did not pass a pressure test. Again, they screwed up basic assembly, they have no QC of record of lash on their rebuilds, and they dont even pressure test the cores they rebuild. I am out 150$ for the pressure test and another 150$ for the cost of head bolts, cam phaser bolts, and a head gasket. Do not trust these guys they are scam artists masquerading as professionals. They will sell you garbage and then get defensive about it.

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Joe W

The 243 heads i bought look really good... Light deburring will be needed, but no broken exhaust studs to deal with. These heads are very clean and milled. They are blasted.. Not painted

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Justin Day

Bought two sets of 241 LS heads from them on eBay back in December/January of 2022. They were perfect and gave me no issues during installation. I put the car back together in May, and I'm about 6500 miles into the rebuild now without any hiccups. Make sure you're competent or using a competent shop to do your engine, a lot of the bad reviews sound like installer error to me. I could not have been happier with the parts, especially at the price. Update 12/21/2023: 16k miles on the heads since I installed them and she's still running great. Update 01/20/26: I hit 194k miles on the motor, 43k on the heads. Still great.