Hey guys currently have a 383 stroker with the following set up:
-4.030 bore
KB 18cc pistons
5.7 rod
235/249 5.22/.509 107 lsa at .050 Camshaft
0 deck height
9.6:1 Static compression
8.27:1 dynamic compression with my cam
Stock 64cc swirl port heads
Weiand X-CELerator Single Plane intake manifold
Looking for a great set of heads (give me best heads and lets say an okay set that will do the job) and matched intake and carb setup to make the most power out of this little 383 street motor.
What would be a good size carb to run on this ?
What would be the max rpm i could see out of this? Solid roller?
Best = Afr
Decent on a budget = patriot PN# 2181
Edelbrock performer rpm
Holley 750dp assuming lots of gear and converter or manual trans.
Buy stock in BFG's
Enjoy
great heads out of the box,AFR 180s good cheap heaps that require porting,GM vortec, anything in between will cost and perform accordingly.750 cfm carb,manifold depends,performer is a good place to start with that small cam you mentioned,If its Hydraulic flat tappet,consider upgrading
Here's the cam he's talking about.... 12-601-4 - Thumpr
He's also talking about using 1.6 rockers with it.
He probably didn't want to admit to the board that it's a Thumpr, for fear of being beat up.
OP- ditch the single plane in favor of an Edelbrock Performer RPM.
I knew what line of cam it was as soon as I saw the vast seperation in the dual pattern and then the 107LSA.
In my opinion the best head for you combnation would be the AFR-195 CNC comp heads, but here are a few decent alternatives that dont cost quite as much; DART pro 1 200cc, RHS pro action 200cc, Brodix IK200's, Or even a bit cheaper would be the DART Iron Eagle Platinum 200cc heads. In my opinion you need to go with a dual plane intake like the performer rpm, and then I honestly believe that you would be best off going with a 750 vac secondary carb instead of the double pumper carb.
Let start out by asking what is your main purpose for this motor? Also what car or truck is this motor going in. List the vehicle, weight, the stall converter size, rear end gear ratio, and rear tire size.
If its a street car the vacuum secondaries are a much nicer option than a DP carb. I'd go with a nice VS carb and the rest of the combo you have, Dart and Profiler are nice heads too as are Brodix and others.
a double pumper is mechanical secondaries, vacuum secondary carbs only have one accelerator pump circut.
Any style of heads will work with that block, you're probably best off avoiding center bolt valve covers.
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