valve springs

flattusmaximus78 · March 3rd, 2008, 10:04 PM

do we have dual or single valve. and if single should I get dual?

flattusmaximus78 · March 3rd, 2008, 10:10 PM

Would this crower accessories kit work fine with any alphabet cam?

1slo5.0 · March 4th, 2008, 10:04 AM

You need the proper springs for the cam you choose.

flattusmaximus78 · March 4th, 2008, 10:17 AM

I'm still learning cams, with the new cam would I need all new retainers, lifters, and springs.

If just springs which springs should I go with.

flattusmaximus78 · March 4th, 2008, 10:24 AM

I'm still learning cams, so I would need to know which springs to get get and I mean EXACT springs to go with an f303 cam. This will be on stock heads for a good amount of time with cobra intakes unless I can find some gt40's for sale.

PJC Racing · March 6th, 2008, 04:17 AM

Contact Thumper for the right valve train package suited for the cam:
Thumper of Orange Park

flattusmaximus78 · March 6th, 2008, 08:56 AM

Thumper Ported E7s (219/155 cfm)

Performance Vassco dual springs, moley keepers and retainers
For cams to .600 lift (not included)
Stock valve size for the Killer low end throttle responce, and the flow for the mid to top end
Optional - Machined for Screw in studs and guide plates (for adjustable valve train) - Add $100.00
Optional - Roller Timing Chain Gear Set w/3* Key way (for advancing /retarding Camshaft) - Add $64.95 + shipping
$695.00 + 100.00 refundable core charge

So that is a full head right their?

flattusmaximus78 · March 6th, 2008, 08:59 AM

btw thank you I might just give them a call.

Goblin · March 6th, 2008, 10:14 AM

Your cam provider can and will recommend the proper valve springs. Using the wrong vavle springs can open a novel of problems, and its something alot of people try to save a buck on.

flattusmaximus78 · March 6th, 2008, 10:17 AM

Bought my cam of latemodelrestoration, but fucked up my motor mounts order, so when I call them to fix it, I will ask about springs for my fcam. I'm pretty sure that I'm still going with gt40p heads still, and might just replace the valve springs.

But if those thumper heads are a full heads for only about 650 bucks I think I'm ganna go that route.

1slo5.0 · March 6th, 2008, 02:53 PM

Originally Posted by flattusmaximus78

Thumper Ported E7s (219/155 cfm)
Performance Vassco dual springs, moley keepers and retainers

For cams to .600 lift (not included)

Stock valve size for the Killer low end throttle responce, and the flow for the mid to top end

Optional - Machined for Screw in studs and guide plates (for adjustable valve train) - Add $100.00

Optional - Roller Timing Chain Gear Set w/3* Key way (for advancing /retarding Camshaft) - Add $64.95 + shipping

$695.00 + 100.00 refundable core charge

So that is a full head right their?

That is a pretty steep price for E7 heads. I'd dump a couple hundred dollars on a set of P heads before I'd buy ported E7s. I'd love to see those heads flown on an independent bench....

flattusmaximus78 · March 7th, 2008, 10:25 AM

I'm still pretty sure I'm going with the gt40p heads. I'm still wondering if I need to replace the valve springs because of my fcam. Can someone let me know. And if so what size?

JBIGBOOTSY · March 7th, 2008, 10:38 AM

Originally Posted by Darrell

That is a pretty steep price for E7 heads. I'd dump a couple hundred dollars on a set of P heads before I'd buy ported E7s. I'd love to see those heads flown on an independent bench....

700 for e7s FTL... thats a lot of $$ for minimal cfm. 220 cfm is stretching it a bit to me thinks.

JBIGBOOTSY · March 7th, 2008, 10:41 AM

Originally Posted by flattusmaximus78

I'm still pretty sure I'm going with the gt40p heads. I'm still wondering if I need to replace the valve springs because of my fcam. Can someone let me know. And if so what size?

I ran an f-cam with stock springs on an e7 with no problems, but I think I was lucky. I never revved past 6k and usually shifted around 5600-5800, but....I WAS LUCKY, and prolly a lil ignorant too.

flattusmaximus78 · March 7th, 2008, 10:43 AM

well I found a decently pair of fresh gt40p heads for 250. I bought my fcam and it should be here next week. So I need to find some springs to work on the fcam with these heads. What would you suggest.

JBIGBOOTSY · March 7th, 2008, 10:51 AM

I think, I'm not sure but the spring dia. has to be larger than 1.45. the bosses for the valve and seal are huge on gt40s and e7s.
.550 max lift should be fine.

dag545 · March 7th, 2008, 02:14 PM

Originally Posted by Darrell

You need the proper springs for the cam you choose.

Darrel Im running the comp beehive valve springs. I have only heard good things about them. Beehive valve springs have been known in the industry as having a lower mass at the retainer end thus allowing for better valve control. Do you think this would be a good spring for flattus78 to use. I think its a good option. Any opinions on this?

ryans88gt · March 7th, 2008, 02:24 PM

Originally Posted by dag545

Darrel Im running the comp beehive valve springs. I have only heard good things about them. Beehive valve springs have been known in the industry as having a lower mass at the retainer end thus allowing for better valve control. Do you think this would be a good spring for flattus78 to use. I think its a good option. Any opinions on this?

The are nice for mild set ups, but it is more of a marketing ploy than anything. You have to use their retainers, locks etc...
I have seen some comparisons where the behives let the motors rev higher with less spring pressure. Supposed to be more harmonically stable.

1slo5.0 · March 7th, 2008, 02:35 PM

Originally Posted by JBIGBOOTSY

700 for e7s FTL... thats a lot of $$ for minimal cfm. 220 cfm is stretching it a bit to me thinks.

Me thinks the same as you thinks.

1slo5.0 · March 7th, 2008, 02:36 PM

Originally Posted by dag545

Darrel Im running the comp beehive valve springs. I have only heard good things about them. Beehive valve springs have been known in the industry as having a lower mass at the retainer end thus allowing for better valve control. Do you think this would be a good spring for flattus78 to use. I think its a good option. Any opinions on this?

You still need to use the proper spring. Beehive is a style. They still have many different spring rates.

March 3rd, 2008, 10:04 PM	#1
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	valve springs do we have dual or single valve. and if single should I get dual? __________________ exploder top end with 12 psi of v-tech

March 3rd, 2008, 10:10 PM	#2
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	Would this crower accessories kit work fine with any alphabet cam? __________________ exploder top end with 12 psi of v-tech

March 4th, 2008, 10:04 AM	#3
1slo5.0 Zippee is my step sister. 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: Fond du Lac, Wisconsin Posts: 10,353	You need the proper springs for the cam you choose. __________________ Thanks to: Trick Flow, Team Z Motorsports, Total Engine Airflow and Furo Racecraft My daily driver has 16 cylinders and 4400hp @ 1000 rpm....

March 4th, 2008, 10:17 AM	#4
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	I'm still learning cams, with the new cam would I need all new retainers, lifters, and springs. If just springs which springs should I go with. __________________ exploder top end with 12 psi of v-tech

March 4th, 2008, 10:24 AM	#5
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	I'm still learning cams, so I would need to know which springs to get get and I mean EXACT springs to go with an f303 cam. This will be on stock heads for a good amount of time with cobra intakes unless I can find some gt40's for sale. __________________ exploder top end with 12 psi of v-tech

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March 6th, 2008, 04:17 AM	#6
PJC Racing Regular Join Date: Feb 2008 Location: Tampa, Fl Posts: 104	Contact Thumper for the right valve train package suited for the cam: Thumper of Orange Park __________________ 89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works

March 6th, 2008, 08:56 AM	#7
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	Thumper Ported E7s (219/155 cfm) Performance Vassco dual springs, moley keepers and retainers For cams to .600 lift (not included) Stock valve size for the Killer low end throttle responce, and the flow for the mid to top end Optional - Machined for Screw in studs and guide plates (for adjustable valve train) - Add $100.00 Optional - Roller Timing Chain Gear Set w/3* Key way (for advancing /retarding Camshaft) - Add $64.95 + shipping $695.00 + 100.00 refundable core charge So that is a full head right their? __________________ exploder top end with 12 psi of v-tech

March 6th, 2008, 08:59 AM	#8
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	btw thank you I might just give them a call. __________________ exploder top end with 12 psi of v-tech

March 6th, 2008, 10:14 AM	#9
Goblin Hardcore Enthusiast 88mm Join Date: Apr 2007 Location: Tucson, AZ Posts: 2,051	Your cam provider can and will recommend the proper valve springs. Using the wrong vavle springs can open a novel of problems, and its something alot of people try to save a buck on. __________________ Definition of Fast? I'd say thats good enough. NMRA Outlaw 10.5 Season Opener 2008 Photo courtesy of - Yours Truly

March 6th, 2008, 10:17 AM	#10
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	Bought my cam of latemodelrestoration, but fucked up my motor mounts order, so when I call them to fix it, I will ask about springs for my fcam. I'm pretty sure that I'm still going with gt40p heads still, and might just replace the valve springs. But if those thumper heads are a full heads for only about 650 bucks I think I'm ganna go that route. __________________ exploder top end with 12 psi of v-tech

March 7th, 2008, 10:25 AM	#12
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	I'm still pretty sure I'm going with the gt40p heads. I'm still wondering if I need to replace the valve springs because of my fcam. Can someone let me know. And if so what size? __________________ exploder top end with 12 psi of v-tech

March 7th, 2008, 10:43 AM	#15
flattusmaximus78 MM Fanatic 1993 5.ohhhh 14.47 at 96 mph Join Date: Apr 2006 Location: Gatorland Posts: 4,447	well I found a decently pair of fresh gt40p heads for 250. I bought my fcam and it should be here next week. So I need to find some springs to work on the fcam with these heads. What would you suggest. __________________ exploder top end with 12 psi of v-tech

March 7th, 2008, 10:51 AM	#16
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 3,101	I think, I'm not sure but the spring dia. has to be larger than 1.45. the bosses for the valve and seal are huge on gt40s and e7s. .550 max lift should be fine.

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