Chevy 409 Dyno Test at Borowski Race Enterprise

[sjfperformance]

WOW!

I just learned something new.

I never knew that at high RPMs the air velocity gets so high that it pulls fuel from the squirters.

Very interesting.

[midnitejam]

That's not a 409.

[luckyshoeshine]

not the w engine i wanted to view

[GreenRiver72]

Wow sounds like a jet engine compared to my mid-1980's low compression blocks. Thanks for posting

[Levisnteeshirt1]

looks like its definately getting some pullover

[TestECull]

Now that's a proper noise!!

[slippery396]

That's not a real 409 .... :(

[borowskirace]

@slippery396 Agreed. The numbers just worked out that way with a 400. We are building and will post the dyno of a 348 with a full roller valve-train in a couple of weeks. Please subscribe to our videos to see the video when I post it. Thanks for commenting and watching.

[53holeshot]

sb chevy 400 + .040 ???

[kennethrobinson11231]

I was watching gas coming out of the accelerator pump nozzles @ wide open pulls. I didn't know that fuel would be suck out of that circuit. What would make it hard to get the jets right.

[JiMbOsLiCe881]

well the heads and the valve covers dont have the W shape that made them unique , if your gonna have a 409 u gotta have the W, other wise it can be any big block, but it still sounds really good

[CJurasin]

That doesn't look like a 409....the heads aren't right.

[MrStrictlyStock]

Sure doesn't look like a 409. What happened to the "W" shaped heads and valve covers?