GT-40P with F303 Valve spring upgrade?

hunt4004 · April 21st, 2011, 12:59 PM

I'm new to valve springs and I can't find a solid answer to what valve springs I should use. I was wondering if I could get some suggestions from anyone running a similar setup?

Also I would like to know if it is necessary to buy an installation kit with the upgraded valve springs or can I reuse the stock hardware?

bellow is a list of what I have.

1.) GT-40P heads (with assumed stock valve springs)
2.) F303 cam with .512 lift.

Thank you for your time.

mdbstang · April 21st, 2011, 02:01 PM

For the cam you have,the TFS spring upgrade kit is a good choice.It comes with the correct locks and retainers,I think it comes with seals but i heard they are junk so get some of the new fel-pro seals and be done

hunt4004 · April 21st, 2011, 04:06 PM

Are the fel-pro seals you are talking about just stock replacements that I could get from an auto parts store?

mdbstang · April 24th, 2011, 12:45 PM

yes,any auto parts store should have the seals

flattusmaximus78 · April 24th, 2011, 05:03 PM

I ran alex parts replacement springs in my pheads with an fcam on a turbo and blower and they worked fine, technically they aren't for the cam, but they will work fine.

April 21st, 2011, 12:59 PM	#1
hunt4004 Newbie Join Date: May 2010 Location: Grand Blanc Posts: 11 iTrader: 0 reviews	GT-40P with F303 Valve spring upgrade? I'm new to valve springs and I can't find a solid answer to what valve springs I should use. I was wondering if I could get some suggestions from anyone running a similar setup? Also I would like to know if it is necessary to buy an installation kit with the upgraded valve springs or can I reuse the stock hardware? bellow is a list of what I have. 1.) GT-40P heads (with assumed stock valve springs) 2.) F303 cam with .512 lift. Thank you for your time.

April 24th, 2011, 05:03 PM	#5
flattusmaximus78 I Post Entirely Way Too Much 1993 5.ohhhh 12.97 @140mph Join Date: Apr 2006 Location: Gatorland Posts: 6,122 iTrader: 3 reviews	I ran alex parts replacement springs in my pheads with an fcam on a turbo and blower and they worked fine, technically they aren't for the cam, but they will work fine. __________________ 02 Pewter z28, hoosiers/lid/exhaust/spray...125mph 1993 gt Sold, already missed --Moates Quarter horse $225-- --Cobra intake $150-- --tremec 3550 bell and shifter $1100--

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April 21st, 2011, 02:01 PM	#2
mdbstang Newbie 93 vert Join Date: Dec 2010 Location: Wichita KS Posts: 19 iTrader: 0 reviews	For the cam you have,the TFS spring upgrade kit is a good choice.It comes with the correct locks and retainers,I think it comes with seals but i heard they are junk so get some of the new fel-pro seals and be done

April 21st, 2011, 04:06 PM	#3
hunt4004 Newbie Join Date: May 2010 Location: Grand Blanc Posts: 11 iTrader: 0 reviews	Are the fel-pro seals you are talking about just stock replacements that I could get from an auto parts store?

April 24th, 2011, 12:45 PM	#4
mdbstang Newbie 93 vert Join Date: Dec 2010 Location: Wichita KS Posts: 19 iTrader: 0 reviews	yes,any auto parts store should have the seals

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