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I don’t know which car you are talking about, but most of our engines have a warrenty our 427ci 650hp strip engine, even our chevy 540ci 800+hp has a warrenty. Buy the way nice mustang in your sign.

I don’t think its pushing an engine when someone else starts a tread on a forum, has a few questions, and other members are not quite sure what parts come on the engine. Just being helpful I am a fox body enthusiast and owner too, also I never posted any prices or contact info. The block is not...

These Engines Are Very Reliable Comes With A 2Year Unlimite Mile Warrenty, How Many Engine Builders Stand Behind Their Engines Like That? As Far As Fast Goes That Power IN A Good Hooking FoxBody Is A fast Comb Would Out Run The New5.0, Camaro Ss, And C6Corvette Which Are All Consider Fast.

I would not call it a truck engine 351w in the old lightnings never made this kind of power.

Thanks for the comments guys. This engine is built to be a great street engine lots of cubic inches, good head/camshaft package, built for someone who wants to drive their car everyday A/C power brakes, and still have the power to have fun. But this is not for everyone that why we build 408ci...

The HP21 we build is very street able, if you use it with fuel injection just have to make sure to get it tuned correctly.

Hey guys My name is Matt I work here at ATK came across your post, and thought I could give a little input into what parts we use in the 408ci stroker part#HP21. No Chinese heads here we use Edelbrock Performer RPM heads and the rotating assemble is from Scat, we stick to the big name brands...