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Re: New 540 build [Re: moparacer] #3232764
05/14/24 01:07 PM
05/14/24 01:07 PM
Joined: Jan 2003
Posts: 4,091
Shelby Twp. Mi
HardcoreB Offline
master
HardcoreB  Offline
master

Joined: Jan 2003
Posts: 4,091
Shelby Twp. Mi
Originally Posted by moparacer
Originally Posted by Mbrown
Originally Posted by powertrip
Great power out of that build, especially when considering how many struggle with making 750+ with those heads. If you don't mind a couple of questions:

What compression?
What are the rough cam specs?
What were the flow #'s and what did you have to do to get those?

Thanks!

Compression is 12.5 , camshaft is 275@.050 intake 279@.050 exhaust. 113 LSA intake is 109.5 centerline.
A lot of thought went into the camshaft and particularly the intake closing point.
The Victor head is way better than most give it credit for. Any of the 350cc cnc programs will get you right at 385cfm @.800 with the 2.2 valve. For my heads, I am 355cc, 2.2 valve and flow a TON. I stayed with the 2.2 valve on this set because the 2.25 on my first set didnt yield much. I thought it made the port a little too slow.

I may post my flow sheets some time. I would like to get the car on the track and see what kind of power its making. Dynos and the track are 2 different animals.Valve train is atrocious on these heads. This is my second time using them. I recommend milling the rocker stands off and use longer valves. At the end of the day, thats the only way to get them right. Anything else is too compromised..


355 cc?!?! Holy cow I had no idea.....

I just keep slogging along with my old -1s and now guys are making Eddie's that are better lol.

The jury is definitely still out on that yet because there has been 1000HP -1 motors.

Re: New 540 build [Re: Mbrown] #3232777
05/14/24 02:24 PM
05/14/24 02:24 PM
Joined: Dec 2021
Posts: 1,166
Loudoun County, VA
Brad_Haak Offline
super stock
Brad_Haak  Offline
super stock

Joined: Dec 2021
Posts: 1,166
Loudoun County, VA
Perhaps I missed it... any info re the valve train being used (rockers, pushrods, lifter, etc.) other than it being a Mike Jones cam as spec'd above?

I'm guess the rockers probably don't look like these grin

Hughes-1.6-rockers-on-Victor.jpg

2021 Challenger 6.4L Scat Pack 1320
100% stock: 1.680, 11.894 at 113.75 (DA 175 ft)
weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)

1973 Challenger 452 ci street/strip [2008]
pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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