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Topic: DOHC CYLINDER HEADS

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December 04, 2009 at 09:56:03 PM

Joined:	11/30/2004
Posts:	504

DOHC CYLINDER HEADS

Any one out there besides Me, think they should be legal for all sprint cars?

Thanks,

Don Flanders

throttlejohnson

December 04, 2009 at 11:50:15 PM

Joined:	02/27/2007
Posts:	468

This message was edited on December 04, 2009 at 11:51:20 PM by throttlejohnson

Nope. Just you.

The older I get, the faster I used to be.

The_Truth_Detector

December 05, 2009 at 12:47:58 AM

Joined:	05/17/2008
Posts:	516

At one time thew were legal...

minthess
MyWebsite

December 05, 2009 at 03:10:43 PM

Joined:	12/09/2008
Posts:	2403

Reply to:

Posted By: The_Truth_Detector on December 05 2009 at 12:47:58 AM
At one time thew were legal...

They were legal at one time. Then Fords starting going way faster than the other guys so they are not allowed now. Yes they should be legal at premier sprint car races. The coolest diecast models of all time are the OHC GMPs.

Luna's Ford engine style that won 2 WoO titles and 3 
Kings Royals before a weight rule against the best EVER
in their prime and now DOMINATES super dirt late model
racing is no longer allowed/wanted in a WoO sprint
car.... Was Luna a miracle worker?

SteveV

December 05, 2009 at 03:14:38 PM

Joined:	12/01/2004
Posts:	645

Moser engineering made those twin cam heads for the small block back in the seventies, I saw them more on street rods than sprintcars though

Rail

December 06, 2009 at 11:46:03 AM

Joined:	05/19/2009
Posts:	580

I believe it would increase cost of the motor.

The_Truth_Detector

December 06, 2009 at 11:59:49 AM

Joined:	05/17/2008
Posts:	516

Reply to:

Posted By: Rail on December 06 2009 at 11:46:03 AM

I believe it would increase cost of the motor.

So does a new set of Weld Tech's every 6 months to keep up with the Jones'

Sprint57

December 07, 2009 at 08:40:01 PM

Joined:	08/10/2005
Posts:	50

That's a great idea if you can only use a V8 with DOHC that comes from a passenger car. No changing of bore and stroke and no welding on cylinder heads. In other words Stock Block and Heads. Can you say innovation and computers.

Offy65

December 07, 2009 at 09:13:20 PM

Joined:	07/02/2009
Posts:	29

I'm partial to the DOHC 4V configuration (hence my user name). retrofitting a small block chevy seems like a mistake to me. Solid DOHC 4V production V8s are everywhere. Toyota and some other manufacturers have had good production units for 10+ years. The DOHC 4V V8 in the old Ivan Stewart trucks was a TRD version of the UZ series V8, which same in 4.3L (aluminum block) and 4.7L (iron block). UZ V8s have bulletbroof Y style blocks with cross bolted 6 bolt mains. They would need stronger cranks and rods but easily could be incredible race motors. Thats just one example that Im familiar with, others exist. They could be viable... Sanctioning bodies need to embrace it if will take hold. Instead they stick to the status quo, and we have crazy purpose built pushrod midget 4 bangers, and new purpose built versions of pushrod V8s that have never sat in the frame rails of anything from mopar, chevrolet, or toyota. Toyota has not sold anything with pushrods other than forklift engines for decades in the USA, but TRD has pushrod 4 cylinders and V8s available.. Seems silly to me.

new-parts

December 08, 2009 at 09:21:00 AM

Joined:	11/30/2004
Posts:	504

DOHC V8 Engines USA Market 1981 Up

**DOHC V8 Engines USA Market 1981 Up**
Make	Type	Liter	CID	CC	Head	Valves
Alfa Romeo	V8	4.7L	286	4691	DOHC	32
Aston-Martin	V8	4.3L	262	4282	DOHC	32
Aston-Martin	V8	4.7L	289	4735	DOHC	32
Aston-Martin	V8	5.3L	326	5340	DOHC	32
Audi	V8	3.6L	217	3562	DOHC	32
Audi	V8	3.7L	226	3697	DOHC	32
Audi	V8	4.2L	255	4172	DOHC	32
Audi	V8	4.2L	255	4172	DOHC	40
Bentley	V8	4.4L	268	4398	DOHC	32
BMW	V8	3.0L	183	2997	DOHC	32
BMW	V8	4.0L	244	3999	DOHC	32
BMW	V8	4.4L	268	4398	DOHC	32
BMW	V8	4.6L	282	4619	DOHC	32
BMW	V8	4.8L	293	4799	DOHC	32
BMW	V8	4.9L	301	4941	DOHC	32
Buick	V8	4.6L	279	4565	DOHC	32
Cadillac	V8	4.4L	267	4375	DOHC	32
Cadillac	V8	4.6L	279	4565	DOHC	32
Chevrolet	V8	5.7L	350	5733	DOHC	32
Ferrari	V8	2.9L	179	2936	DOHC	32
Ferrari	V8	3.2L	194	3185	DOHC	32
Ferrari	V8	3.4L	208	3405	DOHC	32
Ferrari	V8	3.5L	213	3500	DOHC	32
Ferrari	V8	3.6L	219	3586	DOHC	32
Ferrari	V8	4.3L	262	4308	DOHC	32
Ford	V8	3.4L	207	3392	DOHC	32
Ford	V8	3.9L	241	3950	DOHC	32
Ford	V8	4.6L	281	4603	DOHC	32
Ford	V8	5.4L	330	5410	DOHC	32
Hyundai	V8	4.6L	282	4627	DOHC	32
Infiniti	V8	4.1L	252	4130	DOHC	32
Infiniti	V8	4.5L	274	4494	DOHC	32
Infiniti	V8	5.0L	307	5026	DOHC	32
Infiniti	V8	5.6L	339	5552	DOHC	32
Jaguar	V8	4.0L	243	3980	DOHC	32
Jaguar	V8	4.2L	256	4196	DOHC	32
Jaguar	V8	5.0L	305	5000	DOHC	32
Kia	V8	4.6L	282	4627	DOHC	32
Land Rover	V8	4.2L	256	4197	DOHC	32
Land Rover	V8	4.4L	268	4398	DOHC	32
Land Rover	V8	5.0L	305	5000	DOHC	32
Lexus	V8	4.0L	242	3966	DOHC	32
Lexus	V8	4.3L	262	4293	DOHC	32
Lexus	V8	4.6L	281	4608	DOHC	32
Lexus	V8	4.7L	285	4701	DOHC	32
Lexus	V8	5.0L	303	4969	DOHC	32
Lexus	V8	5.7L	346	5663	DOHC	32
Lincoln	V8	3.9L	241	3950	DOHC	32
Lincoln	V8	4.6L	281	4603	DOHC	32
Lincoln	V8	5.4L	330	5410	DOHC	32
Lotus	V8	3.5L	214	3506	DOHC	32
Maserati	V8	4.2L	259	4244	DOHC	32
Maserati	V8	4.7L	286	4691	DOHC	32
Maserati	V8	4.9L	301	4930	DOHC	32
Mercedes-Benz	V8	4.2L	256	4197	DOHC	32
Mercedes-Benz	V8	4.6L	285	4663	DOHC	32
Mercedes-Benz	V8	4.7L	285	4663	DOHC	32
Mercedes-Benz	V8	5.0L	303	4973	DOHC	32
Mercedes-Benz	V8	5.5L	333	5461	DOHC	32
Mercedes-Benz	V8	6.3L	379	6208	DOHC	32
Mercury	V8	4.6L	281	4603	DOHC	32
Nissan	V8	5.6L	339	5552	DOHC	32
Oldsmobile	V8	4.0L	244	3994	DOHC	32
Pontiac	V8	4.6L	279	4565	DOHC	32
Porsche	V8	4.5L	275	4511	DOHC	32
Porsche	V8	4.8L	293	4806	DOHC	32
Porsche	V8	5.0L	302	4957	DOHC	32
Porsche	V8	5.4L	329	5392	DOHC	32
Toyota	V8	4.6L	281	4608	DOHC	32
Toyota	V8	4.7L	285	4664	DOHC	32
Toyota	V8	5.7L	346	5663	DOHC	32
Volkswagen	V8	4.2L	254	4163	DOHC	32
Volkswagen	V8	4.2L	254	4163	DOHC	40
Volvo	V8	4.4L	269	4414	DOHC	32

brettco

December 08, 2009 at 06:24:55 PM

Joined:	12/03/2004
Posts:	517

Why do you want to make everyones current legal 50k 410 engines obsolete? Change the rules and cost everybody money- and you talk about saving racers money?

Offy65

December 10, 2009 at 06:25:01 PM

Joined:	07/02/2009
Posts:	29

This was more of a theoretical discussion than a practical one. It's interesting to think about, but nothing will change, I know that. In 10 years, the engines will still be pushrod V8s, just way more expensive, and the purses will not be significantly different. Think Im wrong, look back 10 years..

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