This crate looks pretty good. 454 425HP 500 ft. lb. of torque, and the original accesorries bolt right up for $4800.

I'd like to hear some opinions if anybody has purchased one of these.

Thanks.

This crate looks pretty good. 454 425HP 500 ft. lb. of torque, and the original accesorries bolt right up for $4800.

I'd like to hear some opinions if anybody has purchased one of these.

Thanks.
Check the search feature. I have seen talk about this engine over the months and I swear I remember something about someone saying you are VERY limited to how much bigger cam you can install on the set up. Compression is 8.75

Great motor for a great price. You can run 12's easy, and it idles nice too.

If your looking to substantially modify it, build your own motor b/c it is not cost effective due to the low-compression and some other issues.

I purchased my 70 Chevelle with a 454 HO that had been modified (valvetrain& intake). Also, a Big Shot 275 HP nitrous kit. The guy that owned it before me raced it on the street. Then I had it for another 3 years spraying it here and there. Ran flawless and very fast on that nitrous! All I did was change oil and lash the valves. I sold it still running great.
It has a real strong bottom end from the factory. The cam I had in it was a .606 lift solid cam and a Edelbrock Victor Jr intake. As far as stock performance, cant help you there, but I'd say performance potential and relialbility are excellent.
Good luck!

It's basically a GenVI version of the '71 LS6 motor with a hyd roller cam.

See now that sounds perfect to me. I'm not really interested in setting up a big cam 500HP thumper that dosent idle and makes my power brakes weak. If I can take that motor and make an honest 400+HP with my vintage M22, exhaust manifolds, LS6 intake and carb, that'll do just fine.

Just paint it Chevey Orange and drop it in.

If I can get nice idle and decent 12 range performace all in a reliable fresh GM assembled motor, that will do nicely.