Procharged small block, boom.
09-13-2006, 11:02 AM
#62
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Re: Procharged small block, boom.
How about this one?
Part # 10185071
Duration @ 0.050" Lift: 208/221
Lift: .474"/.510"
Lobe Separation: 112
Type: Hydraulic roller tappet
Part # 10185071
Duration @ 0.050" Lift: 208/221
Lift: .474"/.510"
Lobe Separation: 112
Type: Hydraulic roller tappet
09-13-2006, 11:13 AM
#63
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Re: Procharged small block, boom.
It would work OK. IMO But you could probably do better. You've got pretty good heads so I'm not sure you need that big of a split even with the SC. I'd like to see a little more duration. Of course if you can get one cheap that impacts the decision. Maybe SB or Rmbuilder will chime in. They know much more than me about camshaft design.
09-13-2006, 01:10 PM
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Re: Procharged small block, boom.
I'm clueless with blown applications - I'll admit....again. LOL.
Blowncrown - that Part # 10185071 is from the ZZ4 crate motors. Those use the old aluminum Corvette heads. Engine makes okay power because of high compression + okay 'yesterday's' heads. Totally different head then you have now.
BobL - the crane you mentioned is a favorite amongst many 383 + 406 SBC marine build ups.
I just don't know these Edel heads + do not know what the camshaft demands would be for a centrifugal S/C with this set-up. RMBuilder + probably Tomcat would have more insight.
So................I'm watching this thread myself. Always need more data.
Blowncrown - that Part # 10185071 is from the ZZ4 crate motors. Those use the old aluminum Corvette heads. Engine makes okay power because of high compression + okay 'yesterday's' heads. Totally different head then you have now.
BobL - the crane you mentioned is a favorite amongst many 383 + 406 SBC marine build ups.
I just don't know these Edel heads + do not know what the camshaft demands would be for a centrifugal S/C with this set-up. RMBuilder + probably Tomcat would have more insight.
So................I'm watching this thread myself. Always need more data.
09-13-2006, 10:43 PM
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Re: Procharged small block, boom.
Originally Posted by bobl
I'm kinda partial to the one I used in these 383's. It's a Crane 109831. I erroneously posted earlier that I had the 821 cam in these engines. If memory serves me right it's .509/.528 lift and 222/230 @ .050 duration with a 112 LSA. That's about as big as I would go. It hasn't killed my 02 sensor idling on the dyno, so I don't think it will revert water badly, although I do have Stainless Marine exhaust on it. The 109821 is a little milder and may be a better choice. I've had one of those running in a Whippled 6.2 for 3 years now. The 6 .2 came stock with the 104224 cam.
214/222 duration sounds a bit small to be able to turn 5600+rpm.
09-13-2006, 10:55 PM
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Re: Procharged small block, boom.
Originally Posted by blowncrown
How about this one?
Part # 10185071
Duration @ 0.050" Lift: 208/221
Lift: .474"/.510"
Lobe Separation: 112
Type: Hydraulic roller tappet
Part # 10185071
Duration @ 0.050" Lift: 208/221
Lift: .474"/.510"
Lobe Separation: 112
Type: Hydraulic roller tappet
It built power to about 5000rpm. But like BOBL said, you don't need 13 degree split. Those E-tech 200 heads apparently have some very good exhuaust ports, so probably a 6 degree split would be plenty.
I've got a 383 with a comp 224/230 HR. It builds power on the Dyno to 5400rpm. This may be more cam than you need with your SC.
http://purplesagetradingpost.com/sum...fo/heads1.html
http://www.bulletcams.com/
Last edited by LMAC; 09-14-2006 at 09:30 AM.
09-14-2006, 07:06 PM
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Re: Procharged small block, boom.
Originally Posted by bobl
I'm kinda partial to the one I used in these 383's. It's a Crane 109831. I erroneously posted earlier that I had the 821 cam in these engines. If memory serves me right it's .509/.528 lift and 222/230 @ .050 duration with a 112 LSA. That's about as big as I would go. It hasn't killed my 02 sensor idling on the dyno, so I don't think it will revert water badly, although I do have Stainless Marine exhaust on it. The 109821 is a little milder and may be a better choice. I've had one of those running in a Whippled 6.2 for 3 years now. The 6 .2 came stock with the 104224 cam.
09-14-2006, 07:31 PM
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Re: Procharged small block, boom.
You got me to doing some research. It appears that Merc uses the 831 cam in the scorpion 377 racing engine. The parts manual shows the stock GM lifters being used. I know I used them on the 6.2 with the 821 cam. So, they shouldn't be an issue.
09-14-2006, 09:42 PM
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Re: Procharged small block, boom.
Originally Posted by blowncrown
Do you have to use aftermarket lifters with these cams or will stock lifters do?
