Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: goldmember]
#253178
03/14/09 12:58 AM
03/14/09 12:58 AM
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Joined: Jan 2003
Posts: 309
Maracaibo,Venezuela
GTMaracucho
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super street
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Quote:
Thats an agressive flat tappet. What heads,compression,converter,weight,etc.
Full Ported Magnun Heads (2.02/1.60) 1.6 Roller Rockets.
Compression will be 10.2 (I'm planing install dish piston)
3000/3500 JE Covverter
4.56:1 rear ratio, 28x10.5 MT Tire.
My car is 2.756 Lbs.
Victor 340 Intake with Custom 750 Prosystem Carb (Maybe)
I'm worry about lifter, some firend say me that the liter gallery of magnum is different and my lifters don't fit.
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: goldmember]
#253180
03/14/09 01:07 AM
03/14/09 01:07 AM
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Joined: Jan 2003
Posts: 309
Maracaibo,Venezuela
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Quote:
Thats pretty low compression for that cam and more converter(5000 stall) would be a big help. What is you goal performance wise?
About 11sec. I think
But I can change the piston for flat type to get about 12:1.
But what about the lifter??
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: GTMaracucho]
#253181
03/14/09 01:14 AM
03/14/09 01:14 AM
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Joined: Feb 2004
Posts: 4,501
Gainesville,FL
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12 to 1 would be good with that cam. For lifters AMC lifters can be used to oil thru the pushrod. Valve spring choice is vey important with that cam,nothing less than 140lbs seat 350 open and more seat would be fine. A ceramic style lifter with a spring 200lbs seat 450ish open would be better but very $$$.That combo with a race torque converter should run very well.
Last edited by goldmember; 03/14/09 01:15 AM.
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: goldmember]
#253182
03/14/09 01:21 AM
03/14/09 01:21 AM
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Joined: Jan 2003
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Maracaibo,Venezuela
GTMaracucho
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Quote:
12 to 1 would be good with that cam. For lifters AMC lifters can be used to oil thru the pushrod. Valve spring choice is vey important with that cam,nothing less than 140lbs seat 350 open and more seat would be fine. A ceramic style lifter with a spring 200lbs seat 450ish open would be better but very $$$.That combo with a race torque converter should run very well.
I have the complete kit with spring, thanks a lot
Any other opinion will be apreciate.
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: goldmember]
#253184
03/14/09 10:32 AM
03/14/09 10:32 AM
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Maracaibo,Venezuela
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Quote:
Check carefully the springs supplied as the springs listed on the Lunati website are often incorrect.
OK, I'll recheck this 
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: GTMaracucho]
#253185
03/14/09 11:15 AM
03/14/09 11:15 AM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
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I don't believe it will fit running Magnum heads at tthe 1.6 ratio. They can take IIRC about .550 lift with 1.6s when running the longer chevy valves. You will be way beyond that. Plus, need more static, plus, needs a spring that will fit Magnums with enough pressure. I'm sure Lunati's rating is with 1.5 rocker ratio unless it says otherwise.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: moper]
#253186
03/14/09 11:33 AM
03/14/09 11:33 AM
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Joined: Jan 2003
Posts: 309
Maracaibo,Venezuela
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Quote:
I don't believe it will fit running Magnum heads at tthe 1.6 ratio. They can take IIRC about .550 lift with 1.6s when running the longer chevy valves. You will be way beyond that. Plus, need more static, plus, needs a spring that will fit Magnums with enough pressure. I'm sure Lunati's rating is with 1.5 rocker ratio unless it says otherwise.
Ok, what about use cheby 1.5 rockers??
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: GTMaracucho]
#253187
03/14/09 01:29 PM
03/14/09 01:29 PM
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Joined: Feb 2004
Posts: 4,501
Gainesville,FL
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It's been many years since I went down this road,but as I recall it takes an effort even with .100long sbc valves to get enough installed height to find a spring that is functional. You may also need to run 1.5 rockers,another option would be a different camshaft as the one you've got is more than needed. Sorry I just thought of another problem,what are you going to do about those tiny 5/16" rocker stud bases. I don't think they would live well with the combo you have. They can be drilled and tapped for 3/8" and I've gone so far as to use 7/16" studs,but the meat around the stud gets pretty thin. For an 11 second combo you might want to keep it simple an use a milder cam/spring combo.
Last edited by goldmember; 03/14/09 02:17 PM.
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: goldmember]
#253191
03/14/09 03:27 PM
03/14/09 03:27 PM
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Anonymous
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Quote:
Exactly my point.It's so easy a caveman can do it.LOL
Not a caveman,but I did sleep at a Holiday Inn last night..lol... 
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Re: Lunati Solid Cam on 408 Magnum Stroker
[Re: GTMaracucho]
#253193
03/15/09 01:08 AM
03/15/09 01:08 AM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
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I like the 2nd one better... But I'd run it at 110.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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