New cam! I need spring recommendations
Thread Starter
Racer
Joined: Nov 2007
Posts: 276
Likes: 1
From: Ephrata Washington
New cam! I need spring recommendations
Hey guys I just got a MTI Stealth II, but seeing how MTI is out of bussiness, there tech help kinda sucks 
Any ideas on what springs would work with this thing? The ones from SDPC? Yellow springs maybe?
I want something that is a drop in, and I have a set of LS2 springs sitting here with no purpose, if those would work that would be great.
Specs are 224/220 .581/.581 116 Not sure what lobes but I would guess XFI.
Any ideas on what springs would work with this thing? The ones from SDPC? Yellow springs maybe?
I want something that is a drop in, and I have a set of LS2 springs sitting here with no purpose, if those would work that would be great.
Specs are 224/220 .581/.581 116 Not sure what lobes but I would guess XFI.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
First recommendation, PSI 1511 ML
Second recommendation: PAC 1518
No springs just drop in, they should be measured so you know your seat values and open values with a valve spring micrometer. Yellow springs (I assume LS6) are not enough spring for that cam. The above are beehive design springs, you can also go with doubles but you will need to remove the valve seals as well to install the new seats.
Second recommendation: PAC 1518
No springs just drop in, they should be measured so you know your seat values and open values with a valve spring micrometer. Yellow springs (I assume LS6) are not enough spring for that cam. The above are beehive design springs, you can also go with doubles but you will need to remove the valve seals as well to install the new seats.
Thread Starter
Racer
Joined: Nov 2007
Posts: 276
Likes: 1
From: Ephrata Washington
First recommendation, PSI 1511 ML
Second recommendation: PAC 1518
No springs just drop in, they should be measured so you know your seat values and open values with a valve spring micrometer. Yellow springs (I assume LS6) are not enough spring for that cam. The above are beehive design springs, you can also go with doubles but you will need to remove the valve seals as well to install the new seats.
Second recommendation: PAC 1518
No springs just drop in, they should be measured so you know your seat values and open values with a valve spring micrometer. Yellow springs (I assume LS6) are not enough spring for that cam. The above are beehive design springs, you can also go with doubles but you will need to remove the valve seals as well to install the new seats.
I don't want to remachine the valve pockets to facilitate the new springs.
Thanks for the input. I have a new set of valve seals waiting to go on as well, and oil pump and timing chain.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Of all the beehive designs, the PSI are probably the top spring. The PAC's are a close second. Both have surface treatments for extended life, which is a desirable thing with a cam that has a fast opening lobe. There are good dual kits as well, such as the Patriots. Best thing to do is get a good installation tool and bar none that is the Crane tool.
Thread Starter
Racer
Joined: Nov 2007
Posts: 276
Likes: 1
From: Ephrata Washington
Of all the beehive designs, the PSI are probably the top spring. The PAC's are a close second. Both have surface treatments for extended life, which is a desirable thing with a cam that has a fast opening lobe. There are good dual kits as well, such as the Patriots. Best thing to do is get a good installation tool and bar none that is the Crane tool.
Who has the best prices on the PSI springs?
