[C409]

Hey All ... does anyone have personal or dyno experience with one of these ? ... It's my understanding that these came on some crate 454 LSX engines .

 

[N4YTRI]

I don't know, but dude, your car looks cool

 

[C409]

Thanks !

 

[DarkMatter]

Hey All ... does anyone have personal or dyno experience with one of these ? ... It's my understanding that these came on some crate 454 LSX engines .

Lsx DR crate eng .....Huge port. Head was sold with 313cc DR head = Huge.
I believe Someone on here used that intake with a big cubed ls build...

 

[C409]

 

[DarkMatter]

It fits a large port ls7 head

View attachment 460351
View attachment 460350
View attachment 460349

 

[Tron S]

C409 going LS. Love it!

 

[C5 Pete]

That’s a really nice piece! Best of success with the build!

 

[Stroked-Z]

How is the port alignment and do you know the height from the valley plate to the carb flange ?

 

[rkupon1]

Is that from the discontinued 454 lsx-R?

 

[C409]

How is the port alignment and do you know the height from the valley plate to the carb flange ?

LS7 ports are smaller all the way around , looks like I will be gasket matching the heads to the intake ... height is right at 8" ... the plenum top has been opened up quite a bit , I will likely have it milled down to where a 4500 throttle body with gasket will seal it , I think I can take 1/2" or more off ... it also looks like the manifold attaching bolt bosses were spot faced with a masonry chisel and sledge hammer ... this was off (so I was told) a tall deck LSX block and milled to fit the LS7 heads ... I will definitely need to have that work checked out too !!!

 

[C409]

Is that from the discontinued 454 lsx-R?

It supposedly came off a 454 crate motor ... probably what you are referring to ... I haven't found any info on it beyond some of the obvious and what little I learned from the PO ...

 

[DarkMatter]

LSX wPRC LS7's and GM LSX DR intake! - LS1TECH - Camaro and Firebird Forum Discussion

Generation IV Internal Engine - LSX wPRC LS7's and GM LSX DR intake! - I just finished up a build for Gforce here is the video http://www.youtube.com/watch?v=TorVWJWyTPs&feature=player_embedded The PRC LS7's worked great like always.

ls1tech.com

i thought i read something along the lines your thinking.
🤫

 

[TrendSetter]

it also looks like the manifold attaching bolt bosses were spot faced with a masonry chisel and sledge hammer ...

i was going to ask if the top and bolt bosses were 'adjusted' with a chain saw. hopefully its recoverable.

 

[DualQuadDave]

Let me raise my hand and ask. Why this intake instead of a CID? To me the port alignment on the corners would be way better w) the CiD. This does seem lower profile, though, if you have a hood clearance max.

 

[DarkMatter]

Let me raise my hand and ask. Why this intake instead of a CID? To me the port alignment on the corners would be way better w) the CiD. This does seem lower profile, though, if you have a hood clearance max.

I got about 1200 reasons...A dollar for every reason
🤣
Only thing is the port was made for a Big ass port.
Take a Look at the DR intake/head gasket vs the typical Ls7 inake/head gasket.
😱