well i finally finished my 383 build up im gonna put it in next weekend! and do the beak in


350 4 bolt .030 over
zero decked block
eagle 3.750 cast crank good to 500hp at 7500r's
eagle forged i-beam rods
arp cap screws
kb flat top pistons -7 valve reliefs
patriot heads 190cc runners 64cc chambers 2.02 1.60
lunati voodoo cam 227/233 @.050 .522in .538exh
holley stealth ram intake

 

one more!

 

Looks like you should have a pretty nice set up there. What is you estimated HP?? Also a quick question about the Patriot heads?? Did the intake gaskets match up OK??? Ive heard that they use the larger 1206 style gaskets and that intake matching is necassay?? Let here her fire up!! Good luck.

 

wow man looks great! your build came around faster than mine is i'm getting ready to put mine together as well

that car should run strong!

 

thanks for all the re-assurance i sure hope it runs as good as it looks. i will keep yall posted. see if i cant break something else now! lol!!

 

What kind of compression ratio will this engine have? I've got a similar shortblock.

 

looks like it should be about 10.8-10.9:1
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Thats thing oughtta move out pretty good! Cant wait to see what it runs....

 

yeah it should be 10.7 gonna be premium only at the minimum the dynamic cr should be around 9.2-9.3 which is kinda high. and even gasket matching he intake the port alignment isn't that great. the head ports are more like a vortec port witch is why they have there flow carecteristics

 

are you sure the dynamic is that high? seems abit high for that cam

 

it calculates out to 9.274

4.030 bore
.041 thk gasket
4.166 gasket bore
deck at 0
piston head 7cc valve relifes
64cc chambers
3.750 stroke
5.7 rod
39.5 ic + 15 = 54.5

=
9.274

 

i see you use the + 15 rule. that isnt always the case

if 39.5 is your intake closing at .050, i used this formula to get IC at .006 or seat

intake closing at .050" + ( (advertised duration - .050" duration) / 2)

thats the 103 voodoo cam right? flat tappet? advertised at 268 on the intake, so your IC at seat timing should be closer to 60 instead of 54. That will lower things abit and be much better for pump gas, i think your in the clear and should have a solid running motor

 

great thanks for the info. i might get to put her in a little sooner than planned. out of town and the work truck broke down last night. i will keep yall posted
thnks Ted

 

sweat!

 

Sweeeeet! I just finished mines also, and i see you using patroit heads, so am i, go check me out, i went with a red block.

 

thats hot! i have a 350 block in the garage i need to get tanked/bored/clearanced for stroke as well. i'm probably going scat internals and eliminator heads (if i can come up with the cheese)