Ever heard of these Valve Springs?
#1
Launching!
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Ever heard of these Valve Springs?
I just bought 2 sets of springs im not sure which they are:
The first is a dark grey single beehive springs with a blue stripe on the side I suspect these are Comp 918s
The others are these:
http://cgi.ebay.com/ebaymotors/PSI-1...item5d2661c9e6
I could post up pics of the others, so any help would be great
The first is a dark grey single beehive springs with a blue stripe on the side I suspect these are Comp 918s
The others are these:
http://cgi.ebay.com/ebaymotors/PSI-1...item5d2661c9e6
I could post up pics of the others, so any help would be great
#2
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Actually i think the ones with the blue stripe are these:
http://cgi.ebay.com/ebaymotors/LS1-B...Q5fAccessories
http://cgi.ebay.com/ebaymotors/LS1-B...Q5fAccessories
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I guess I'm not answering your question. But why buy questionable springs off ebay when you can get new high quality springs like these PAC 1218's for a good price:
http://www.sdparts.com/product/PAC12...veSprings.aspx
http://www.sdparts.com/product/PAC12...veSprings.aspx
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PSI is a well known spring, but i've never seen them used on an LS1. The others i didn't look at too closely, but under item details it says the manufacturer part # is 26918, which would be 918's.
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#9
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For starters, PSI are excellent springs. However, these are used off of a NASCAR engine? Holy crap, if that is the case they are beat. Also, the OD look to be very large, larger then will fit an LSx head. The PSI 1511ML is a beehive valve spring made for the LS motor. They came standard on the Dart heads.
#11
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I'm not sure what retainer and seat you would use to install those PSI springs and that may be a problem. But the most notable issue is the listed coil bind of the spring in the ad is 1.250. The installed height on an LS1(without machining or longer valves) is usually in the 1.750-1.800 range, which limits that spring to 0.500-0.550 lift.
#12
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I asked the guy about the single springs and he said they are manufatured by comp cams and are slightly better than the 918, what do you guys think? when i get them in the mail ill take pics and show u guys