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Old 03-30-2012, 07:36 PM
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383 rotating assembly

Hey guys dont know a hole lot about strockers. Would this rotating assembly fit in my 350 thats bored 30 over to become a 383 strocker engine?


http://www.jegs.com/i/Eagle/356/B13405E/10002/-1

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Old 03-30-2012, 09:36 PM
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Yes it will providing your 350 is a generation 1. However, you'll have to pay attention to what size chambers your heads have, if you have small chamber heads the compression ratio will be too high for pump gas. Lastly, I think you meant "Stroker"
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Old 03-31-2012, 09:19 AM
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Could I use 64 cc heads to run on pump gas. Or what is the lowest?
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Old 03-31-2012, 09:56 AM
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On that kit it rates compression ratios with chamber size. 64cc chambers rate a 10.7:1 compression ratio, too high for pump gas. You would need heads with 76cc chambers or get a dished piston at least around 18cc.
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Old 03-31-2012, 10:16 AM
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I posted on this last night but it didn't go through for some reason. JEGS lists this rot assy with 64 cc head at 10.7:1 but yet if you plug the numbers into a CR calculator with a .040 quench you end up with 11.1:1, this is certainly to much for pump gas. If you want to run pump gas then look for the kit that has 17 cc dished pistons, with a 64 cc head you will be sitting at 9.5:1
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Old 03-31-2012, 10:59 AM
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Quote:
Originally Posted by my87Z
I posted on this last night but it didn't go through for some reason. JEGS lists this rot assy with 64 cc head at 10.7:1 but yet if you plug the numbers into a CR calculator with a .040 quench you end up with 11.1:1, this is certainly to much for pump gas. If you want to run pump gas then look for the kit that has 17 cc dished pistons, with a 64 cc head you will be sitting at 9.5:1
Too much for pump gas unless you have a healthy cam and aluminum heads...

Its all very intertwined and application dependant, what is the OP's goals? Use? Fuel? Car? Etc?
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Old 03-31-2012, 12:05 PM
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I have been running an internal balance Eagle crank on a '0' decked block, 12cc dish pistons, 0.041 quench, CC XE274H cam and TF 23* 64cc aluminum heads.

Calculated static CR is 10.30.

Timing is 34* all in @ 2600 rpm + 16* vacuum advance.

Never any problems using BP 89 octane fuel.

'76 Corvette w/4 speed. Weighs +/- 3250# with my butt behind the wheel.

I particularly built this engine to run on <91-93 octane fuel.
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Old 03-31-2012, 12:46 PM
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Thanks guys. I will use this for something I can take out on a sunny day on the weekend. Not a daily driver. Honestly I dont really care what gas I have to use. I prefer gas at the pump (87,89,93) cause its close but really dont matter. Was planning on getting the 383 rotating assembly. And the top end kit.

http://www.jegs.com/i/Eagle/356/B13405E/10002/-1



http://www.jegs.com/i/Edelbrock/350/2098/10002/-1
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Old 05-27-2012, 12:09 PM
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Is a 383 a 350?

Hey guys this might be a stupid question to most but I need to know. Is a 383 engine a 350. It just bored 30 over and has a different crank right? Or am I completly wrong? Need to know before I order a top end kit for my chevy 350.

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Old 05-27-2012, 12:35 PM
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It seems to me that you should already know the answer...

http://www.hotrodders.com/forum/383-...ly-217568.html
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Old 05-27-2012, 10:36 PM
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I've merged your two threads, why do you ask what you already know? And why don't you do a simple search on this site?
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Old 05-28-2012, 09:56 AM
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Hi...

Hi Allen,short answer is,YES a 383 SBC starts out as a 350 SBC,the stroked crank is what makes it a 383,PAY ATTENTION to ALL the previous posts,on Head combustion size (in CC) and pistons. they are very decent engines,if you can afford it,go with aluminum heads.
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