Hey, Rodney, you gotta do whats best (and most economical) for you. Besides, don't the crate motors have a warranty? Thats a BIG plus.

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"Down on the Boardwalk...

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 Hey Rodney,  Edlebrock was right about the Performer intake limiting what you can get out of a 383. I just got my engine back from the builder using a Performer (because of the clearance) with new Iron Eagle Platinum heads 200cc runners, 72cc and 202 intake valves, forged Mahle pistons and a 228/235 472 lift 110 lobe center w/4 degree advance cam. Best he could get with the HEI ign on the dyno was 386 hp @ 5300 and 425.2 torque @ 4200 rpm. Not as much as I was hoping for but a heck of a lot better than anything I've had! It'll be strong on bottom and mid range with the torque.

 You could probably spend less with a crate and get a warranty like Barry said. Only thing is, I know how this was built. Should be running tomorrow. Let you know how it feels. Maybe add a 50 or 100 shot NOS later or change the hood for more clearance and a better intake. 

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   I know the voices aren't real, but they have some pretty cool ideas...

Dwain,
Thats a good lookin 71 you have there. I think my favorite part of the late 60's early 70's is the louvers on the side. I know what you are talking about when you say you know how it was build. The engine builder I use has a GM crate motor right now that he says the cam bearings were in wrong. He didnt show me what he meant by that but he said he sees it alot. Is your cam a roller cam. Edelbrock really pushed me towards them. Said its really the only way to go in todays engine builds. The problem I have with that is the amount a money it takes to go that route. Thanks for your input.
Rodney


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[QUOTE=longhorn294] Hey Rodney,  Edlebrock was right about the Performer intake limiting what you can get out of a 383. I just got my engine back from the builder using a Performer (because of the clearance) with new Iron Eagle Platinum heads 200cc runners, 72cc and 202 intake valves, forged Mahle pistons and a 228/235 472 lift 110 lobe center w/4 degree advance cam. Best he could get with the HEI ign on the dyno was 386 hp @ 5300 and 425.2 torque @ 4200 rpm. Not as much as I was hoping for but a heck of a lot better than anything I've had! It'll be strong on bottom and mid range with the torque.

 
I don't quite understand how the Performer intake can restrict you that much. I have the same intake and my engine is making 505HP and 510 lbs torque at 4200 rpm.

Hey Rodney I haven't told you this yet but the guy next door to me is a GM rep that sells GM performance parts..I can see if he can get you a real price on a stroker..get me the part number out of the GM catalog you want and I will ask him..I don't pay list for nuttin!!!  Rich yostusota2010-11-30 19:14:37

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My first parade at Carlisle 2010

[QUOTE=rearn2go72]

 
I don't quite understand how the Performer intake can restrict you that much. I have the same intake and my engine is making 505HP and 510 lbs torque at 4200 rpm.
[/QUOTE]   Jim, are you sure you have the plain Performer intake and not a Performer RPM or Performer Air-Gap? With that LT1 hood you would have room for one of those taller intakes.   Rodney,  My cam is a hyd flat tappet. Roller cam is the way to go if you can afford the extra bucks. It would free up some poneys for sure, but i still think that intake would be restricting. I could be wrong. longhorn2942010-11-30 21:52:26

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   I know the voices aren't real, but they have some pretty cool ideas...

[QUOTE=longhorn294][QUOTE=rearn2go72]

 

  Jim, are you sure you have the plain Performer intake and not a Performer RPM or Performer Air-Gap? With that LT1 hood you would have room for one of those taller intakes.   Rodney,  My cam is a hyd flat tappet. Roller cam is the way to go if you can afford the extra bucks. It would free up some poneys for sure, but i still think that intake would be restricting. I could be wrong. [/QUOTE]


I have the Performer 2101.

[QUOTE=rearn2go72] [QUOTE=longhorn294][QUOTE=rearn2go72]

 

  Jim, are you sure you have the plain Performer intake and not a Performer RPM or Performer Air-Gap? With that LT1 hood you would have room for one of those taller intakes.   Rodney,  My cam is a hyd flat tappet. Roller cam is the way to go if you can afford the extra bucks. It would free up some poneys for sure, but i still think that intake would be restricting. I could be wrong. [/QUOTE]


I have the Performer 2101.

[/QUOTE]  Jees Louise! What else you got under there makin that kind of hp? Cam, heads, carb, etc? I'd really like to know what combination you have to get that power.

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   I know the voices aren't real, but they have some pretty cool ideas...

[QUOTE=yostusota]Hey Rodney I haven't told you this yet but the guy next door to me is a GM rep that sells GM performance parts..I can see if he can get you a real price on a stroker..get me the part number out of the GM catalog you want and I will ask him..I don't pay list for nuttin!!!  Rich [/QUOTE] Rich, I'll remember you if and when I need to upgrade my powerplant. Hopefully not in the NEAR future, as I have enough going on right now! Barry

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"Down on the Boardwalk...

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Small blocks make a lot of power if you build them right. My 406 is pushing over 500/500 and runs on pump gas!!

Were in each others neighborhood.  A good friend of mine has a 383 he just pulled froom his box nova.  He was pulling mid-12s. The motor is frsh and I think he still has it up for sale.  Its a great street motor.