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PAC 1207X or BTR .660 Platinums with custom FTI StreetSweeper??? Pushrods? Lifters?
Ive got a 2002 LS1 with untouched 241 heads and LS6 intake.
Decided to try out this cam I've had laying around while I wait out the great intake spectacle of 2015 to finish my 416 build.
Trying to decide which spring kit would be better for this cam. It is a custom StreetSweeper 235/239 625/.624 ground on a Lunati core.
Whichever I go with I will opt for Ti retainers. So far aside from the cam I have purchased upgraded trunnions, Katech rod bolts, Cloyes Hex-a-just timing set with C5R chain, new lifter trays, ported/blueprinted oil pump, a chain tensioner, ATI 10% UD Pulley, and a Racetronix fuel pump and hotwire kit.
As far as lifters and pushrods:
Would the Johnson SLR lifters be overkill for my application? If so, I'll use the Morel 5315 lifters.
Do these lifters use a stock length pushrod? If not, what length would I need for proper preload?
Would a .080 wall 5/16" 1 pc 4130 pushrod be sufficient for this combo or should I upgrade to a heavier walled PR?
As for springs I know either would work. I'm really wondering if the 1207's will keep pressure longer and allow me some added valvetrain stability. If so, would they be harder on my valve guides? I no longer have converters so I'm going to add some ZDDP to my oil.
Any opinions?
Pushrod length depends on so many things. The best way is to just measure. However you could ask Ed what usually works with stock type builds and take a guess. But still measure you may get lucky with what you already have or then may just need to exchange them.
I think the 5315s will be fine johnsons are really nice but I just don't think they're needed here but if you had extra funds and were inclined to do so it wouldn't hurt
2) .80 wall is fine if the valvetrain is light and the cam lobe is not too aggressive... .120 wall is better.
3) Morel 5315's should be fine, they like .060 preload. Get the LS2 trays if you go this route. Johnson short travel would be a nice upgrade, especially if you plan on spinning it over 7k rpm.
I sent an email to Ed Curtis since he spec'd it but he hasn't responded yet. I am going to measure for length.
That was smart to do. Since he spec'd the cam, might as well allow him to spec out the rest of the valvetrain. I know you'll be happier in the end allowing him to do so.
Still haven't heard from him. I went ahead and ordered 1207x's and the johnsons. I'd still like to know what install height for the springs and if the cam installs dot to dot. I'd really like to know his opinion on if I should go with heavy wall pushrods or not.
I bought a spring compressor, I still need to get a spring mic. Is it necessary to buy a valve stem install tool or is there a shade tree way of installing them safely? As for the cam I'm going to try it dot to dot first. I haven't decided whether I'm going to try to degree it. Not even sure how I would with the heads still on.
Degree the cam so it's installed as intended. Summit has a degree wheel kit that is decent. The mag base for the indicator is cheap but the rest are decent quality stuff. Be careful in your selection of a valve spring mic as some do not hold the retainer properly. PAC has a nice one. Push the valve seals on carefully with a socket.
Degree the cam so it's installed as intended. Summit has a degree wheel kit that is decent. The mag base for the indicator is cheap but the rest are decent quality stuff. Be careful in your selection of a valve spring mic as some do not hold the retainer properly. PAC has a nice one. Push the valve seals on carefully with a socket.
Does the degree kit work without taking the heads off?
How do you degree without taking off the heads?
That cam does perform...There was somebody on here trapping 126 with that cam only. I believe he had some weight reduction and race wheels...still very impressive.
A little bigger then what I would want for a street car, I like the smaller version(SSHT)...I almost pulled the trigger on it but the lobe was a little too aggressive for my 1.85 rockers.
I'm hoping it does alright. It should be enough to appease me while I wait out the Vararam intake and see if it's worth it, and buy me time to get a level 5 magnum and CF driveshaft to go behind the 416.
Using the degree wheel with the heads on is easy. You'll have to get a little creative to hold the indicator as the mag base won't stick to aluminum. A long bolt into the rocker stand to hold the mag base will work fine. Put a pushrod in then the indicator will travel with the pushrod. Make sure that it's straight. Google will make it obvious with a pic. I have the degree wheel kit from Summit and my only complaint was the mag base.
04-19-2015, 12:25 PM
PAC 1207X or BTR .660 Platinums with custom FTI StreetSweeper??? Pushrods? Lifters? 
