New Viper Cylinder heads announced at PRI show.

[Daniel Cragin/DC Performance Inc]

JM announced its new cylinder head for Gen 2-3 Vipers at the Performance Racing Industry show this weekend. Pricing and availability have not been announced (we hope to see some in March). I can tell you this, these will be the best best flowing, best cooling heads on the market. Intake flow numbers are over 340cfm!
We expect well over 600rwhp with these heads on NA engines and I believe it will be the cylinder head of choice for the drag racers.

I will keep you informed about the pricing and availability, these will be available through a dealer network around the country.

 

[Qualitywires.com]

What are the flow rates on his current highest heads right now compared to the new ones?

 

[GTSnake]

I heard he perfected his new C&C program and will be very consistent from batch to batch.

 

[GTS Bruce]

Yeah but how Much$$.$5000 heads plus cam and RR?Might as well just Paxton it. GTS Bruce

 

[Torquemonster]

GTSBruce - have you just sucked on a lemon or are the hemoriods playing up again?


Heads flowing 340cfm are GREAT NEWS for the Viper community - hopefully they do not lose too much velocity. The potential power gains here are huge with the right combo!

They'll compliment all motor road racing, drags, blowers and turbos - thanks for the news Dan!

 

[GTS Bruce]

I'm sucking on a bottle of Labatt Ice!No hemoriods and no stinky feet.So here's my point(s).NA is wonderful.(Not No alcohol).I'm a big fan of it.But at what price compared to a forced induction system of even greater power.Great if you want NA only which is the way I lean.Then again you could use those heads with forced induction,and or NOS depending on how much you want to spend or what your use is.At 600HP or 600+ will the stock block handle it on a road course or at the strip and will the fuel system keep up?Will the stock ECU keep up?In the long run it might be less expensive to go forced induction for gains up to the region of 600+HP crank.Paxton and Roe systems could be providing 600+RHP for less money with all the ECU tweaks and fuel system upgrades in the package. GTS Bruce

 

[Torquemonster]

Just funnin with ya - Bruce

Agreed - value for money - nitrous or a blower is the hp bargain... but as you know - nitrous runs out and a blower adds weight and runs hot on a road course if you get into it for too long.... unless you go to a really well setup water injection system... if you beat the temps you then gotta worry about the belt lasting a long race.. no doubt it can be done - look at Nadine

A Viper longblock can handle over 600rwhp with ease...

A full house Viper motor with good heads and everything else is not cheap - but so what - the results can be world beating - look at Chad - and he could road race that with the boost way down - (in drag tune it fries tires in 5th from 60mph at half throttle - with drag radials )!

 

[GTS Bruce]

Ok Torque.Let wait and see what the price is. GTS Bruce

 

[PhoenixGTS]

I've seen the number $2,850 mentioned for Greg Good heads. Would that be the mods to your cores? Or complete heads?

 

[Bugeater]

2850 for JM complete heads. LOL.

I would expect thats cores, maybe. A big maybe.

 

[onerareviper]

Here's what us non-tuners want to know.... To get 600+ RWHP with these heads, what do we need (on a Gen II)? I assume a cam, headers, and exhaust is a given. What else if anything, and how much money? Fuel system upgrades? Roller rockers? Different computer? Special tuning? Do the creampuff years need any additional parts or money spent? Just the facts, please....

 

[Vic]

Here's what us non-tuners want to know.... To get 600+ RWHP with these heads, what do we need (on a Gen II)? I assume a cam, headers, and exhaust is a given. What else if anything, and how much money? Fuel system upgrades? Roller rockers? Different computer? Special tuning? Do the creampuff years need any additional parts or money spent? Just the facts, please....

Mine would need those special "Unobtainium" pistons.


















(Its about time I used "unobtainium" in a sentance again.)

 

[STUGOTS]

greg goods heads are only $2850????

 

[PhoenixGTS]

greg goods heads are only $2850????

I hope I did not start something. I just happened to see that $2,850 figure in a recent post (last couple of months) and was wondering if it was correct.

 

[Greg Good Cylinder Heads]

What post was that?

Just curious.

 

[BIGBADCJ]

theres your cue that they are 8k w/exchange.

 

[PhoenixGTS]

theres your cue that they are 8k w/exchange.

That is just plain ******** expensive.

 

[PhoenixGTS]

What post was that?

Just curious.

Sorry. I ran "2850" and "2,850" in the search function and all I came up with was this thread. Maybe it was $28,500 and I misread it. Man I need a new job so I can make more $$$.

 

[v10kingsnake]

greg is one of the best tho!

 

[BigCarrot]

theres your cue that they are 8k w/exchange.

That is just plain ******** expensive.

No [******]!!!

 

[Greg Good Cylinder Heads]

Who's heads cost 8 grand?

 

[2002_Viper_GTS_ACR]

Greg, why not just state what you sell your different stage heads for. Do you have Stage 2 and Stage 3 ? or Just one stage ?

Whats the price ?

I think they are exagerating on you with that 8k stuff.

Jon

 

[Martin D]

You know...I would not be surprised if they did cost 8k. But with exchange does not make sense - especially if these are new castings.

I would like to know who is doing the casting. Is it done here in the USA and if not, where?? Do the heads come bare? What about the heat treat? How big can we go on the valves? etc....

I think that if these heads are truly a new design, that is great news for the Viper community.

I want to hear more!!!!!!!!!!!!!!!

Regards,

 

[Greg Good Cylinder Heads]

Greg, why not just state what you sell your different stage heads for. Do you have Stage 2 and Stage 3 ? or Just one stage ?

Whats the price ?

I think they are exagerating on you with that 8k stuff.

Jon

Yeah, that's quite an exaggeration.

This is Dan's thread, and out of respect for him and Jeff I'm not saying anything about my heads. I only spoke up about the prices that were being floated on my stuff.

 

[Joseph Dell]

Back to the issue at hand... here is my question: If a stock viper head flows in the neighborhood of 230 or 240 cfm, and you increase the flow of that head by 100cfm, will there be enough air going into the motor to fill the ports? Thinking about exhaust mods on a car that already has a huge exhaust... there are no gains. At what point, in a N/A car, have you hit diminishing returns with too much flow?

Or is that not possible?

JD

 

[Russ M]

Joseph,

In order to take advantage of the flow from a better head, you need to make sure that the exhaust and intake of the car can keep up.

If you put on a head flowing 300 cfm with an intake manifold that flows 220 cfm your gains will be minimal.

 

[DLTARNU]

To get 600+ RWHP with these heads, what do we need (on a Gen II)?

orv,

My car is at DLM right now getting headers, exhaust, hi-flows, roller rockers, and stage 4 heads. Sticking with original cam - but my engine doesn't have a creamy filling.

For the sake of comparison, this combo plus a mild tune is supposed to deliver right around 600 at the crank. You'd probably need 660ish at the crank to get 600 to the road. So, add a cam, a computer and a more aggressive tune and you'll probably be where you want.

 

[Daniel Cragin/DC Performance Inc]

I will have more information on these heads shortly.
Be patient and I will get you the correct information.

 

[BigCarrot]

I'd love to see what the Gen 3 heads do!