Well it is almost time for me to put in the 383. I am running over my setup and making sure I dont have any surprises. If you have any suggestions, just let me know.

383 shortblock
-5cc mahle pistons compstar crank and rods. 4 bolt splayed with programs caps. Block has been 0 decked.

LE3 heads

LE ported intake

LE4 cam
(LE3 for strokers)

Mezier HD water pump

pro-gear SBC timing chain

canton oil pan
242T

melling select oil pump
10552 10% overdriven (also using the 20-023 pickup after doing homework on pump height vs pan)

58mm BBK

1.6 Comp Magnum rockers

42lb injectors with racetronix (walboro)F/P

Poly motor mounts

Pacesetter LT's

GMMG

Crane lifters

ARP Head bolts + 7/16th head studs

Felpro 1074 head gaskets + others

Things to do still
PCM base tune by PCMforless

zero balance flywheel

Buy pushrods after measuring

buy fluids for car

 

Thats almost identical to my build.

Mine is gonna be getting close to done the end of next week.

we can compare dyno's
:P

 

have you determined your compression ratios yet?

 

Besides the fact it is going to be slower then my car, the list looks good!

On a more serious note, what valve covers are you going to use?

 

I have not calculated the exact compression ratios yet. Can you help me out? Lloyd said I should be in the 11.8-12.1 CR range with a .035 quench and -5 cc piston. I was worried about quench and asked Lloyd what head gaskets would be wise to use. He said that since the car will see street/strip use to use the felpro 1074 vs the impalla gasket to be on the safe side.


Man at first I was going to use the stock ones but try to polish or powdercoat them. I would like to grab some composite LT4 ones or canton ones in the future, so I will not mess the stockers most likely. Those are great #'s you got with your setup BTW.

 

Have you looked at valve springs, rockers, push rod guides, and what kind of rings?

-B

 

valve springs are the pac beehives that came with le3 heads. Rocker arms are listed above. Pushrod guides went with the trickflow guides.Mahle Plasma-Moly 1.5/1.5/3mm Rings are what came with the rotating kit.

 

yeah my static compression seems to be around 12.2 - 1 on my setup.
DCR with the 383 LE3 cam is right at 9.1, which doesn't sound right, but
I hear the LE3 setup is supposed to work well with -5cc pistons......

 

Thanks. I have the canton covers and they look great under the hood. There one of my favorites in the appearance department. As far as fitting, it was terrible. The notch for the alternator was so far off we ended up making a custom bracket to mount the alternator farther up from the valve cover.

 

Got any more info on what bracket materials you used? I am definitely going with the canton valve covers now. (girlfriend is buying me some for graduation) Hey did you have to clearance for the comp pro mag rockers, or more specifically the one next to the alt notch?

 

If you really are 9.1 and you really are considering quench as a serious design consideration, you will be fine. My DCR came out to 9.2 (check sig) and in 110 F heat I had no knock. Quench was a very important component in my build.

Make sure and balance your FW with your PP or separately either way, make sure and do it! So your internals are 0 balanced...just have to confirm.

You spent all this money on a build and not talk of a good torsional dampener?

 

I am not sure what the OP is using, I am using an ASP damper on mine

 

The setup is very similar to mine and except I have an LE3 cam. How big are the combustion chambers? Mine are 57 cc's and the static compression is a hair above 12:1. The quench is going to be .039-0.40" with fel-pro gaskets and zero-decked block. The DCR is between 8.8 and 8.9. It would probably be lower with the LE4 cam unless the combustion chambers are smaller.

 

Yeah... here is the link to where the engine builder/friend posted pics of the setup. https://www.camaroz28.com/forums/sho...d.php?t=517179

I cannot recall which areas we had to clearance, but there were a couple spots.

 

I'm also doing same motor as Ram Air 383 but I had either 54 or 56cc chambers which gave me 12.2 static and I believe I was upper 8 low 9 DCR. I'm in Denver area so I'm going to be conservative on octane for a while upfront till I make sure I have kinks worked out.

I thought I'd compile a list for those out there thinking of doing a 383 as well as for Dave 1980. Like Dave (actually why I found this thread) I want to be sure I do everything I can while I have the motor out.
This list should be a good way to drive home the cost of these projects as well as a resource for people to start researching the various parts.

FelPro 1074 head and full o-ring/gasket set $248
ACL performance rod and main kit $95
Durabond cam bearing set $13
Brass Plug kit $12
ARP main studs $80
Cloyes roller #1345 timing set $100
Callies 4 bolt main caps $200
Compstar crankshaft forged steel internal balance $600
Core block $100
ARP head bolt set $62
Proff Products SFI Balancer $199
Proffessional Products Polished 52mm tb $180
Comp Cam Rods 7.2 measured ~$100
GM lifters and Guides $255
GM new oil drive gear $40 (Don't reuse)
MSD Super Conductor wires OVC $130
30# SVO injectors $200
Ported Intake $200
Jet Hot Ceramic Coated LT's w. Flowmaster Y $500
Mahle Power Pak -5cc $400
Eagle Forged H beams $400
Comp Cams 1.6 RR $200
Used Heads for LE $200
LE2 Headwork & LE3Cam $1800 w. shipping
Machine work for above ~$2400
PCMforless update $50 (~$200New)
Front Shocks & Springs and 98+ Brakes $500
Urethane Engine / Trans Mts $75
02 Extensions for LTs $40
Pilot Bushing *NOT Bearing* $5
Check Clutch Disk Thickness(es)
Check Flywheel for heat stress/warp
Degree cam even if Machinist said he did (printed my own deg. wheel)
Adj. FP Regulator is up to you (not necessary per PCMforless)
EGR Blockoff plates if necessary
Dave I'm assuming you've heard about the typical TB / TPS issues also?


Weekend of Feb. 9th I'll be slapping mine in! Can't wait to hear her lope.
I'm curious to see if I'm restricting potential w. 52mm and 30#'s. But flow for 52mm stiposedly is >700cfm and duty rate for 30's will just be high at WOT. We'll see

BTW - Penz those are some killer number INDEED?
Anyway - Best of Luck to you other 383 builders we'll have to come back and publish our numbers as mentioned above. Damn PENZ!