NEW URE 23º Manifold w/SRH Heads Dyno

[Chad Speier]

Chris had a pump gas build for a customer and used my v2.70PF ProFiler 23º CNC head. It was a large engine, 440cid, and there really wasn't a manifold Chris felt was right. So he designed one and brought it to market.

Engine Details and results:
Chad's v2.7 heads, 440 inches, 11.5:1 compression. Secret sauce cam .820 lift. My manifold. 160 on the seat 1.300" springs. This run on good race gas. I think the average is crazy good. Intake Manifold has the proper area for big power, runner length for wide power. Really surprised it runs to 8000 with the cam and compression, and CID with that head.

The cylinder head has a 2.70 MIN CSA at the pushrod. 2.125 valve and 45º seats. 250cc volume, 5.400 long and a 2.82 AVG CSA.

Video of running engine. It sounds excellent!! https://www.facebook.com/urecompetition ... 2990352411

 

[Grumpy]

posting a part number and a price ,location that has them for their sales ,
would most like likely would help sales



btw related info??

back in the late 1960s-70s the 440 mag wedge, powered cars stood up to the hemi and 427-454 chevy powered cars rather well

 

[NewbVetteGuy]

I'm 90% sure it's this head, because he mentions this particular engine and dyno on the main page for the head (and it has the same CSA).

Pro-Filer v2.70PF/23º (250cc)

v2.70PF/23º 2.70in² MIN 64-67cc chamber 1.300 x 2.300 opening Fel Pro 1289 (trim) 2.82in² AVG CSA 5.40 port length 250cc runner 2.125 intake w/32º BC 4.155 fixture .200 142/113 .300 210/155...

speierracingheads.com

Adam