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Old 03-05-2011, 12:36 AM   #15
CyberPredator
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yes I was referring to dual springs. Good luck with everything. I hope she gets tip top shape soon.
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Old 03-05-2011, 08:39 AM   #16
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Hope the valve isn't bent! That's exactly the reason we like to see customers buy our double spring kit instead of single springs. If a single spring fails there's nothing to keep the valve up :( :(

The good news is if you have to swap valves in theheads it just gives you a reason to do cnc ported heads!!
You use dual springs with your VVT setup ?
What would I pickup RWHP wise from a set of heads? I'm cammed, supercharged and running meth.
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Old 03-05-2011, 08:55 AM   #17
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i would if those are PAC springs? 1518 or 1218?
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Old 03-05-2011, 09:19 AM   #18
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i would if those are PAC springs? 1518 or 1218?
I don't believe the ones included in the Mast cam kit are PAC's...The PAC 1518 were recommended as replacements for the Mast springs.
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Old 03-05-2011, 10:25 AM   #19
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Look a bit like Comp's beehive springs. I know Comp had that spring breakage issue on thier beehives a couple of years back but if we are still seeing problems....

I would trust PAC's beehive springs. That is what I have in my 302 now.

-Mark.
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Old 03-05-2011, 06:23 PM   #20
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Look a bit like Comp's beehive springs. I know Comp had that spring breakage issue on thier beehives a couple of years back but if we are still seeing problems....

I would trust PAC's beehive springs. That is what I have in my 302 now.

-Mark.
Thanks! I'll go with the PAC
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Old 03-05-2011, 07:06 PM   #21
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Just make sure you cam isn't retarding too much to cause P/V contact.

Valve springs can/do break. I've found the single springs weaken faster than the duals when the cars are stored for long periods of time.
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Old 03-05-2011, 07:19 PM   #22
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Beehives wont handle the valve load required to control a cammed car under boost. They just wont. Put in some quality duals, and call it a day
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Old 03-05-2011, 08:37 PM   #23
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Beehives wont handle the valve load required to control a cammed car under boost. They just wont. Put in some quality duals, and call it a day
I have never heard that before... maybe one of shops/tuners can chime in on that. Also I'm not sure if I can run duals with a VVT setup.
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Old 03-06-2011, 12:58 AM   #24
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Beehives wont handle the valve load required to control a cammed car under boost. They just wont. Put in some quality duals, and call it a day
not true at all , pac makes some very good single springs, i have been using them for years in my builds.
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Old 03-07-2011, 04:56 PM   #25
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Latest news..Valve guide is also cracked. Pistons dinged up and the valve and pushrod are obviously history. Do I repair the valve guide and do forged pistons, rods and some pac springs? or just say F*** it and go aftermarket heads and forged bottom end*crank and all*. The later requires me to sell a kidney:(
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Old 03-07-2011, 05:09 PM   #26
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I feel your pain, I had to make the same decision when I lost the #7 piston in my car. I did sell my kidney and went with a full forged build. The biggest thing that really surprised me is that they found my crank was also cracked when they took the engine apart. Had I not done the full build and just replaced the bad parts I would have never known the crank was cracked untill it finally would have let loose!!
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Old 03-07-2011, 06:15 PM   #27
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I feel your pain, I had to make the same decision when I lost the #7 piston in my car. I did sell my kidney and went with a full forged build. The biggest thing that really surprised me is that they found my crank was also cracked when they took the engine apart. Had I not done the full build and just replaced the bad parts I would have never known the crank was cracked untill it finally would have let loose!!
Wow! I hope mine is in better shape. If I may,how much did the stroker run? PM if you want.
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Old 03-08-2011, 02:23 AM   #28
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not true at all , pac makes some very good single springs, i have been using them for years in my builds.
Vastly irrelevant to the issue.
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