New Top End on 400/406
 

Here are the details of the build using Butler Performance Ram Air Series cam - Roller 041
W72 988 block, .030 overbore for a 406 cubic inches, Stock crank, Eagle forged H-Beam connecting rods, Forged TRW pistons, Holley Brawler 750 Double Pumper, Port matched Edelbrock Performer RPM intake manifold, Edelbrock performer RPM 72cc Heads (Ported), 10:1 compression, Butler's Roller 041 Cam, 1.65 scorpion roller rockers, Comp Cam roller Evolution lifters, round port Doug's headers 1 7/8th primary and 3.5 inch collectors. Exhaust is 2.5 inch mandrel bent pipes with an H-pipe thru Texas T/A mufflers. Estimated numbers are 450HP and 480TQ.

Some of you guys might remember this car. It use to have a performer intake manifold, 6x4 heads and the red headed step child cam in th name of the XE274H-10.
Here is a video link to the new engine and the sound of that lovely lope from the RAIV cam.

https://youtu.be/NGIfSMZC1T8

that sounds fantastic. surprisingly sounds really close to an original untouched ra4 car. beautiful car also.

Weird. I had a post in this thread that just vanished.

Thank you! I love the car as it is currently setup. I get a lot of nice comments regarding the sound of the idle from both young and old down here in Florida.

I also noticed that. I figured it out. I posted this twice. Once here and over in the 77-81 firebird section. It was moved to this section and the original is still posted down below My fault for posting twice.

Sweet ride! Sounds awesome.

Sounds awesome- what is idle rpm?

Thanks to both of you guys. Idle is set for 750 RPM.