Heffner performance heads dyno#

[v8huntr]

I finished installing DIY heads from Heffner performance. My viper pulled 507rwhp and 520ft. My car has stock cams and stock bottem end.

other parts are
. B&B headers
. Borla catback
. vec1

i will post dyno sheet soon.

chris

 

[jamie furman]

what were your dyno numbers before the heads were done?

 

[Marc Lublin]

How many cams does your car have?

 

[v8huntr]

that's funny. i think i have one CAMS...

car made 427rwhp before head work.

thanks
chris

 

[GO 4LO]

Any flow specs on Heffner's heads?
Chris

 

[Jason Heffner]

I would have to dig up the flow sheets but I distinctly remember that the flow at .600 was 282 on the intake side and 230 on the exhaust. I usually have a set in stock ready to ship. They can be done on an exchange basis or we can have yours done if you want to keep your heads.

 

[v8huntr]

i'm very happy with my dyno numbers. : )

thanks
chris

 

[GaryA]

Chris asked me to help with the posting of his dyno results:

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