What are your thoughts on this setup?
But you started this thread asking what people thought, and you seem to be in denial about the consensus... As if you didn't really care how people were really going to respond...
Hope if works out for you, and am interested to see how your motor performs for you!
Yes, that scat crank is weaker than the stock one. I don't care how it's balanced it is still weaker. You used forged rods and pistons and a weak crank. If you search on here you will find threads pertaining to the snout of that crank breaking off. The pump your builder used would be good in a older 350 but not in your LT1. Those 2.02/1.60 valves also do well in a older small block. Not in your LT1. But I am done, you asked for peoples opinion but obviously don't care what we have to say.
Not really here to flame, because I'm trying to learn what parts are recommended for the day I need/want a rebuild...
But you started this thread asking what people thought, and you seem to be in denial about the consensus... As if you didn't really care how people were really going to respond...
Hope if works out for you, and am interested to see how your motor performs for you!
But you started this thread asking what people thought, and you seem to be in denial about the consensus... As if you didn't really care how people were really going to respond...
Hope if works out for you, and am interested to see how your motor performs for you!
My issue here is with people saying I wasted my money on going to a local machine shop with a great reputation that has $10K-15K complete engines on stands ready for pickup all over his shop, one being an LSX going into a GTO that I believe was $12k. So if I can't trust an engine builder with 25+ years of experience, not just building monster engines but also getting behind the wheel of monster cars then I guess it's a shame on me? And shame on my friend for recommending them too I guess!
Last edited by 357LT1; Mar 3, 2010 at 04:53 PM.
Yes, that scat crank is weaker than the stock one. I don't care how it's balanced it is still weaker. You used forged rods and pistons and a weak crank. If you search on here you will find threads pertaining to the snout of that crank breaking off. The pump your builder used would be good in a older 350 but not in your LT1. Those 2.02/1.60 valves also do well in a older small block. Not in your LT1. But I am done, you asked for peoples opinion but obviously don't care what we have to say.
Last edited by 357LT1; Mar 3, 2010 at 04:55 PM.
Only thing I regret is not spending the money I saved on crank to send my heads to Lloyd. Didn't think I had the time to, but shop ended up taking a lot longer than expected. I will be in touch when I'm looking at aftermarket castings. This build wasn't even planned, I was actually searching for complete motors on Craigslist and forums, trying to get a deal from someone who built a stout motor that may be in need for fast cash or went another direction with build. I ended up staying local and I think I made a good choice, time will tell.
http://forums.corvetteforum.com/c4-t...-bad-idea.html
That is just one of many nice post I've came across in the last 3-4 months, my favorite quote being, "If you make enough power to break a cast crank, I will be impressed." and the same person added "I have never owned a forged crank in my life, and I have never hurt a crank. I beat everything I own like a red headed step child. There are others in there.
Looks like high RPM not power would cause an issue with a cast crank, but like mentioned before a good machine shop to check clearances and balance the assembly would be #1. Won't need to spin 385 to 6800 like I did the 357, so that's why the high RPM's weren't an issue for me.
That is just one of many nice post I've came across in the last 3-4 months, my favorite quote being, "If you make enough power to break a cast crank, I will be impressed." and the same person added "I have never owned a forged crank in my life, and I have never hurt a crank. I beat everything I own like a red headed step child. There are others in there.
Looks like high RPM not power would cause an issue with a cast crank, but like mentioned before a good machine shop to check clearances and balance the assembly would be #1. Won't need to spin 385 to 6800 like I did the 357, so that's why the high RPM's weren't an issue for me.
You can find "information" to validate any preconceived notion you want on the internet.
Those of us saying the Eagle cast cranks are weaker than stock say so based on the large number of failures we have seen on forums, don't see stock cranks fail even when used in rebuilds so that kind of throws out the balance idea as the cause.
Those of us saying the Eagle cast cranks are weaker than stock say so based on the large number of failures we have seen on forums, don't see stock cranks fail even when used in rebuilds so that kind of throws out the balance idea as the cause.
You can find "information" to validate any preconceived notion you want on the internet.
Those of us saying the Eagle cast cranks are weaker than stock say so based on the large number of failures we have seen on forums, don't see stock cranks fail even when used in rebuilds so that kind of throws out the balance idea as the cause.
Those of us saying the Eagle cast cranks are weaker than stock say so based on the large number of failures we have seen on forums, don't see stock cranks fail even when used in rebuilds so that kind of throws out the balance idea as the cause.
You can debate about it all day long, but you won't have any peace of mind until you put in a GOOD forged crank. If you're on a budget, look at www.ohiocrank.com and pick up a 4340. I have one in my 383 and they are reasonably priced.
We're not saying that the Scat will definitely break, but for the marginally higher cost (and since money is obviously not a concern here), why wouldn't you go with a forged piece? Do it once. Do it right. Been there, done that.
We're not saying that the Scat will definitely break, but for the marginally higher cost (and since money is obviously not a concern here), why wouldn't you go with a forged piece? Do it once. Do it right. Been there, done that.
This is one of the silliest post I've seen on here in a while! You don't and didn't want advice!! You wanted confirmation. You already said what your going to do and who's going to do it, so why not stop responding and just post up after everything is done. Then you can tell us how great it is and post picts.
Manley 5.7 H beam rods w/2000 bolts
Probe 383 flat top piston 12336-40
Scatt 9000 383 crank 9-103750L
Double roller timing set-005
CB663HN rod bearings
MS909H+001 main bearings
Plasmamoly ring set R8902+40
Felpro gasket set 260-1650
HA2148 hydraulic lifters
CH8 durabond cam bearing set
M55HV oil pump
EPW 1pc 80 wall moly pushrods
Pioneer oil pump stud kit
Milodon 30909 oil pan
Milodon pickup
LT1 stock casting heads
Intake Max 268 @ 600
Exhaust Max 201 @ 600
2.02/1.60 valves
Comp 7/16" Ultra 1.6 NSA RR
ARP 7/16" Studs
Dual Springs
LT1 stock intake
Light porting
58mm TB
42 lb SVOs
Lunati Voodoo cam 60123
Advertised Duration (Int/Exh): 294/302
Duration @ .050 (Int/Exh): 243/251
Gross Valve Lift (Int/Exh): .560/.565
LSA/ICL: 110/106
RPM Range: 2800-6400
Customer of mine just had this motor built at a shop here in town. I know the heads are choking the cam and cubes, but ran out of money for new heads. TFS are definitely in the near future. Any thoughts or suggestions?
Probe 383 flat top piston 12336-40
Scatt 9000 383 crank 9-103750L
Double roller timing set-005
CB663HN rod bearings
MS909H+001 main bearings
Plasmamoly ring set R8902+40
Felpro gasket set 260-1650
HA2148 hydraulic lifters
CH8 durabond cam bearing set
M55HV oil pump
EPW 1pc 80 wall moly pushrods
Pioneer oil pump stud kit
Milodon 30909 oil pan
Milodon pickup
LT1 stock casting heads
Intake Max 268 @ 600
Exhaust Max 201 @ 600
2.02/1.60 valves
Comp 7/16" Ultra 1.6 NSA RR
ARP 7/16" Studs
Dual Springs
LT1 stock intake
Light porting
58mm TB
42 lb SVOs
Lunati Voodoo cam 60123
Advertised Duration (Int/Exh): 294/302
Duration @ .050 (Int/Exh): 243/251
Gross Valve Lift (Int/Exh): .560/.565
LSA/ICL: 110/106
RPM Range: 2800-6400
Customer of mine just had this motor built at a shop here in town. I know the heads are choking the cam and cubes, but ran out of money for new heads. TFS are definitely in the near future. Any thoughts or suggestions?
He has an aftermarket pan, might as well go with HV pump (get the stronger one if possible so it does not crack). Unless your concerned with how much power the HV pump will use up.
Reamo used that cam in one of his cars if I am not mistaken, I am running the size below that 60122 (times in sig, stock UNPORTED heads). So I think you would be OK for now and you have some head work done already.
I don't know seems like the scat crank would be ok to me unless their quality has went down the toilet just like eagle.
I think the general over all idea looks fine, the SCAT cranks had a good rep last time I thought.... Also why are we comparing stock crank 3.48 and a totally different crank 3.75 in strength he can not use his stocker if he is going for 383.
He has an aftermarket pan, might as well go with HV pump (get the stronger one if possible so it does not crack). Unless your concerned with how much power the HV pump will use up.
Reamo used that cam in one of his cars if I am not mistaken, I am running the size below that 60122 (times in sig, stock UNPORTED heads). So I think you would be OK for now and you have some head work done already.
I don't know seems like the scat crank would be ok to me unless their quality has went down the toilet just like eagle.
He has an aftermarket pan, might as well go with HV pump (get the stronger one if possible so it does not crack). Unless your concerned with how much power the HV pump will use up.
Reamo used that cam in one of his cars if I am not mistaken, I am running the size below that 60122 (times in sig, stock UNPORTED heads). So I think you would be OK for now and you have some head work done already.
I don't know seems like the scat crank would be ok to me unless their quality has went down the toilet just like eagle.
You can debate about it all day long, but you won't have any peace of mind until you put in a GOOD forged crank. If you're on a budget, look at www.ohiocrank.com and pick up a 4340. I have one in my 383 and they are reasonably priced.
We're not saying that the Scat will definitely break, but for the marginally higher cost (and since money is obviously not a concern here), why wouldn't you go with a forged piece? Do it once. Do it right. Been there, done that.
We're not saying that the Scat will definitely break, but for the marginally higher cost (and since money is obviously not a concern here), why wouldn't you go with a forged piece? Do it once. Do it right. Been there, done that.
She knows car went under the knife, just not how bad it was.
This is one of the silliest post I've seen on here in a while! You don't and didn't want advice!! You wanted confirmation. You already said what your going to do and who's going to do it, so why not stop responding and just post up after everything is done. Then you can tell us how great it is and post picts.
I think the general over all idea looks fine, the SCAT cranks had a good rep last time I thought.... Also why are we comparing stock crank 3.48 and a totally different crank 3.75 in strength he can not use his stocker if he is going for 383.
He has an aftermarket pan, might as well go with HV pump (get the stronger one if possible so it does not crack). Unless your concerned with how much power the HV pump will use up.
Reamo used that cam in one of his cars if I am not mistaken, I am running the size below that 60122 (times in sig, stock UNPORTED heads). So I think you would be OK for now and you have some head work done already.
I don't know seems like the scat crank would be ok to me unless their quality has went down the toilet just like eagle.
He has an aftermarket pan, might as well go with HV pump (get the stronger one if possible so it does not crack). Unless your concerned with how much power the HV pump will use up.
Reamo used that cam in one of his cars if I am not mistaken, I am running the size below that 60122 (times in sig, stock UNPORTED heads). So I think you would be OK for now and you have some head work done already.
I don't know seems like the scat crank would be ok to me unless their quality has went down the toilet just like eagle.
I would of used probably used that 60122 if I would of kept it .040 over. Those are good track numbers for stock heads, nice trap! Have a friend still working out some wrinkels in his setup, actually has all forged 4 bolt 355 LT4 with AFR's, custom cam and all the goodies. He is looking for another 6 mph or so. Knowing that, it would be rude to say it was a waste of money the time and money he spent.


