Home of the HI-FLOW lump kit.
Our goal is to help you build your car with what is needed for your car. Don't spend extra money on gimmicks, but check out the services I offer. We put special attention to detailed and quality products.
We can help make a 'bolt in lump port kit' or a 'performance intake lump port head' work for your inline chevy 194, 230, 250, 292 and 153,181, 2.5, or 3.0 mercury engines.
There is also a instructional video on how to add a bolt in lump kit to your head.
Our services also include 12 bolt rearend restoration and rebuilding. We have a wide selection of rears in stock and ready to build!
Recently, dyno testing was done on a Chevy 292 to test street speed parts. The same type testing was also done on a 250.
Thanks for visiting our site! Hopefully you will find the information you are looking for. -Tom Lowe
Newly designed! Bolt on breather adaptor.
These are to used with our valve cover. Allows the VC to have fins undisturbed and breathers bolted to side. Now available. Click picture to see them.
Feel free to contact me by email or phone. Tom@12bolt.com
or phone 319 476 2172
Feel Free to sign the Guest Book. Like to hear your inline stories. Tom
mr Ghotrod6 mrhotrod6