Valve spring for a steet car.
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Howard Healy
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Valve spring for a steet car.
What valve spring would you run on a street car for reliability? SBC with 126 gram intake valve and a Lunati 255/264 @50 .665 lift with 1.6 rockers. Lunati said 74650-16. 235lb on seat and 587 open with 503lb/inch rate.
Those who are head and shoulders above the rest, are standing on a pile of parts.
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Turbobuick6
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Re: Valve spring for a steet car.
Monza's recommendation is a good one.
Another option would be PAC-1237X (requires a 1.800" installed height.)
Another option would be PAC-1237X (requires a 1.800" installed height.)
Re: Valve spring for a steet car.
One of the main criteria here will be the available installed height.
Somewhat handy with a die grinder.
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Howard Healy
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- Location: Calgary Alberta
Re: Valve spring for a steet car.
Installed ht is 1.900
Those who are head and shoulders above the rest, are standing on a pile of parts.
Re: Valve spring for a steet car.
As noted - PAC 1243 with a tool steel retainer.
"Quality" is like buying oats. You can pay a fair price for it and get some good quality oats,
or you can get it a hell of a lot cheaper, when it's already been through the horse.
Nil Satis Nisi Optimum
Ed Curtis - www.FlowTechInduction.com
or you can get it a hell of a lot cheaper, when it's already been through the horse.
Nil Satis Nisi Optimum
Ed Curtis - www.FlowTechInduction.com
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novafornow
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Re: Valve spring for a steet car.
Look at Manley 221443 with tool steel retainer. Just another option.
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Howard Healy
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- Location: Calgary Alberta
Re: Valve spring for a steet car.
I would like to thank those who posted.
Thoughts on PAC-1343
Thoughts on PAC-1343
Those who are head and shoulders above the rest, are standing on a pile of parts.
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Howard Healy
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- Joined: Fri Dec 01, 2006 12:37 am
- Location: Calgary Alberta
Re: Valve spring for a steet car.
Comp 919 will also fit. They are close to half the cost, are they a gamble?
Those who are head and shoulders above the rest, are standing on a pile of parts.
Re: Valve spring for a steet car.
If a customer was concerned with reliability in a street driver, would any of our SBC experts have a discussion with him about the tradeoffs of a .655" lift 587# open setup?Howard Healy wrote: ↑Fri Sep 23, 2022 10:22 am What valve spring would you run on a street car for reliability? SBC with 126 gram intake valve and a Lunati 255/264 @50 .665 lift with 1.6 rockers. Lunati said 74650-16. 235lb on seat and 587 open with 503lb/inch rate.
Jack Vines
Studebaker-Packard V8 Limited
Obsolete Engineering
Studebaker-Packard V8 Limited
Obsolete Engineering
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swampbuggy
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Re: Valve spring for a steet car.
Too much seat pressure for his 1.90 Installed ht............but a nice spring.