383 build questions

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I have a 350 Vortec with a 4 bolt main and 906 cylinder heads. It recently started to knock so I got it all apart and decided to rebuild it as a 383 stroker. My question is what kits should I use for it. I was thinking about using this on for the rotating assembly https://www.summitracing.com/parts/esp-b13504l03068 and this for the camshaft https://www.compcams.com/xtreme-4x4-210-214-hydraulic-roller-k-kit-for-oe-roller-sbc.html.
I'm on a budget so I think these are good. I also want to put new rocker arms on and I'm really confused on that so if you have any info and help please let me know.
 

Schurkey

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Are you able to dick with the computer tune so it runs right?

I don't have a lot of use for Chinese cranks and rods.

Those are the same kind of rockers (but different part numbers) that I use on my truck.
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The Vortec heads don't use pushrod guideplates. You're going to need SELF-ALIGNING rockers, 1417-16, or 1617-16.

That, or you'll have to add pushrod guideplates and hardened pushrods, and then make sure that the pushrod holes in the head casting don't interfere with the pushrods.
 
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Erik the Awful

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Have your machinist magnaflux the block and heads! Even if it was running good, there's a chance your 906s are cracking. I built a great, smooth-running L31 for my Suburban, installed it, and discovered I had a cracked block. Magnaflux before you do ANYTHING else.

If you're not revving over 5,000 rpm regularly, roller rockers are overkill. I'd take that money and spend it elsewhere in the motor, like better heads. With better heads, you can run more lift and then roller rockers are worth while and you end up spending even more money!

Are you wanting dished pistons? Personally, I'm a fan of the highest compression I can run on cheap gas (about 9.5:1). If you haven't already disassembled your bottom end, get your deck height and plug your numbers in here:https://www.summitracing.com/newsandevents/calcsandtools/compression-calculator. I believe you want to target .040" quench distance (deck height + head gasket thickness). It's probably also a good idea to cc your combustion chambers. I've seen specs of both 72cc and 64 cc for Vortec heads. GI Joe always told me that knowing is half the battle.
 
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