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| Eagle223usa | Need an LT4 Guru! | ||
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Guru with Eyes of Steel
 
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Any LT4 owner know if the original LT4 springs had dampers inside them? I just bought a set from Pace and sent them to my machinist. They came without the internal damper. When I asked if he would use the original dampers he stated that if it needed a damper GMPP would have sent them with the springs. Anyone know? What is the dampers purpose in life anyways? Do I need it? Thanks.
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Posted on: 2011/7/24 22:47
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| bogus | Re: Need an LT4 Guru! | ||
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Grand Imperial Pooh-Bah
 
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I am checking the Helm right now and don't see anything special.
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Posted on: 2011/7/24 22:58
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| rklessdriver | Re: Need an LT4 Guru! | ||
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Senior Guru
 
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GM factory LT4 springs do NOT have a flat wire damper.
The damper is to reduce spring harmonics. When GM started the LT1/4's one of the big technical advances was in the valve springs. They used a special type of wire that had an ovate crosssection (as oposed to round). The ovate wire springs did not need a damper to keep the spring harmonics under control. Will |
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Posted on: 2011/7/25 0:36
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1984 Corvette. 434 SBC with a Powerglide. Best pass - 8.48@160MPH 1.23 60ft on MT 275/60R15 Radials. 1972 Corvette. LS5 454 BBC with M20 4 speed. Best Pass - Doing good to just pass a gas station. |
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| Eagle223usa | Re: Need an LT4 Guru! | ||
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Guru with Eyes of Steel
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Groovy! Thanks Bogus and Reckless, I just never seen one on a SBC without it. I should learn to trust my engine builder. Thanks Guys.
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Posted on: 2011/7/25 0:45
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| RickAnthony | Re: Need an LT4 Guru! | ||
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ASE Master Certified
 
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Cool to know about the spring design... I was thinking back when I installed my take off LT4 heads didn't recall seeing one either, but that was years ago..
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Posted on: 2011/7/25 1:03
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My Automotive Blog autoserviceupdated.blogspot.com CORVETTE SERVICE & REPAIR RickAnthonyMotorsports.NET |
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| BrianCunningham | Re: Need an LT4 Guru! | ||
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Senior Guru
 
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They're also nice if the spring breaks, keeps the valve out of the piston.
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Posted on: 2011/7/25 1:15
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com |
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| Eagle223usa | Re: Need an LT4 Guru! | ||
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Guru with Eyes of Steel
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Quote:
You mean having a damper, right Brian? |
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Posted on: 2011/7/25 19:00
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| MK 82 | Re: Need an LT4 Guru! | ||
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Senior Guru
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It is just a second smaller spring. Never heard it called a dampner. They are not used as much anymore.
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Posted on: 2011/7/28 4:28
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