383 Build input request (E85)

[xxdabroxx]

Thanks all for the converter recommendations once we are a little closer on the engine I'll start contacting some of them and see what they recommend.

We got the engine torn apart over the weekend and ready to go to the machine shop.

[steve cowan]

Thanks all for the converter recommendations once we are a little closer on the engine I'll start contacting some of them and see what they recommend.

We got the engine torn apart over the weekend and ready to go to the machine shop.

Do you mind saying what direction you are planning to go?

[xxdabroxx]

I'm going to give the local performance machine shop a go, I've never used them before but I've heard good things about them. He balances in house. After he looks at the block I'll see what he would recommend for a rotating assembly for my goals and see if that jives with my research. He mentioned parts are tough to get right now so that may limit my options to an extent. I'm not in a huge hurry to get the engine done as there are other areas of the car that need work too and I still need to order the cam from Jones too.

I'll likely take the heads to him to look over once I get the cam selected and ordered along with appropriate springs and have them installed. I don't have a good spring compressor and they may be due for a once over anyway.

[rustbucket79]

Just reviewing your first post, most any forged crank will do the trick. I’ve owned a Scat superlight (400 mains) 3.75 stroke crank since 2006, trans brake for a few seasons, still in use. Nice piece, but it needed Mallory to balance. ($$$) If I was to replace it today I would likely just buy a standard weight crank and keep the additional money in my bank account.

The Scat 2-ICR6000-7/16 are clean rods with some added cam clearance, but they require more block clearancing if I recall correctly, or just go with any of the budget friendly H beams. (Molar/K1/Eagle/Scat/etc)

Your choice of Mahle pistons is great, they have a racey ring pack and don’t need an oil support rail.

[xxdabroxx]

I figured I'd give a brief update on my build (plans).

I've got a Scat 435061LW F43 3.75 stroke, 350 main, 2.00" rod journal crank ordered. We were having a hell of a time finding a small rod crank in stock anywhere but Speedway had 3 of these. Then I had to have the crank delivered to a buddy in AZ as Speedway wouldn't ship it to CA. Someone must have checked the wrong box on the computer when they inventoried them and they wouldn't ship it because it isn't CARB approved. I tried my best to argue my point but the monkey behind the computer refused to put a shipping label on it and ship it to me. PITA but it's working out OK as my buddy is coming back to CA in a few days and the crank should be delivered today.

The local machine shop doing the work has a set of darn nice looking CP small journal rods w/ 7/16 bolts he said he'd give us a good deal on (still need to find out what that good deal is after seeing what MSRP on them was ). He's going to spend a little more time with the block and get some pistons ordered for us. I've also just ordered an ATI balancer (ATI917220) and a TCI sfi flexplate along with some howards billet main caps.

I think I'm pushing the limits of the 010 block but hopefully the aftermarket main caps and a small fill of the block will keep it together for a while.

[rustbucket79]

Looks good, the 350 block should have no issue surviving HOWEVER you should at least price out a 4.125 bore SHP block, by the time you pay for the fill and mainline work the price difference will start to make sense, never mind the added 17 cubes and bulletproof casting that will continue to grow with you.

[xxdabroxx]

I did price one out but it’s a little out of the budget right now with all the other stuff the car needs to get back on the track/ road. I figured I’d be into the $2500 - $3000 range on the SHP by the time I got the machine work done, oil pump, main studs, oil pan, etc. It would be a major punt at this point in the game with all the parts I’ve already got coming. Definitely the plan for the next iteration of the engine though.

Crank made it to AZ today and the box looks like it didn’t get beat up a all. Super surprised about that, usually when I get a heavy package it looks like it was drug behind the truck.

[FloydODB]

you wouldnt need studs/pan/pump. we gotta 720hp dirt mod stock SHP going 8 seasons now(freshened every year). we did a pump gas 10:1 383. stock 010 block, scat f43 crank 2.1" rod scat pro-comps. srp pro's AFR 195comp, solid roller 236/236 108 550/600(1:5/1:6 T&D's) very short team G with a quickfuel750 e-choke. 550hp/~510trq. could've got closer to 600 with a vic jr & HP.

[steve316]

CompStar 2.00 rods(csa6000cs2a2ah) have the bolts moved toward the center line, so the bolts clear every where better. Most of your rod manufactures
use 2.1 blanks( 350 journals) so your clearance is no better. I would check bolts center line, before you buy. Speedway has CompStars for $633.

[xxdabroxx]

CompStar 2.00 rods(csa6000cs2a2ah) have the bolts moved toward the center line, so the bolts clear every where better. Most of your rod manufactures
use 2.1 blanks( 350 journals) so your clearance is no better. I would check bolts center line, before you buy. Speedway has CompStars for $633.

I'll keep those in mind if he wants too much for the CP rods (C-283-1<A-66000H-8). I'm hoping he's ready to get rid of them cheap but if they aren't in the budget then I'll shoot for those Callies rods.

https://cp-carrillo-catalog.cld.bz/CP-C ... atalog/48/

https://www.summitracing.com/parts/cnn-2831a66000h8

[xxdabroxx]

Finally made it to the track for a test session. We didn't do much to the car but ran a best of 10.38 at 128mph with our small block build. We rolled the car over the scales at the track and it weighs about 3,330 lbs without driver so I figure I'm right about 3,530 lbs or so race weight. I think a little more suspension tuning and fattening up the carb a bit and we can chew a little more off the ET. Thank you all for sharing your knowledge on the forums!

download.png

20220326_193558.jpg

[nitrokid60]

Glad for the update, nice output from the combo. I'm curious about the fuel system set-up on E85, always researching or helping. We have run the corn for 10 seasons now and love it. And E85 loves compression/Boost.

[steve cowan]

Finally made it to the track for a test session. We didn't do much to the car but ran a best of 10.38 at 128mph with our small block build. We rolled the car over the scales at the track and it weighs about 3,330 lbs without driver so I figure I'm right about 3,530 lbs or so race weight. I think a little more suspension tuning and fattening up the carb a bit and we can chew a little more off the ET. Thank you all for sharing your knowledge on the forums!

download.png

20220326_193558.jpg

I think you have done well,congratulations on your first time out with fresh combination.
Your short times,ET and MPH line up pretty good
Would you mind sharing your full updated combo.
At a guess you are around 580 hp or so.
Nice job.

[xxdabroxx]

Thanks guys, it's been a lot of work and we've had our share of struggles with the car. FWIW I think the DA was about 2000 feet or so on Sat. About as good as the air gets at Famoso other than maybe the March meets or the last races of the season. I think our intake may be somewhat low hanging fruit if we wanted a little more power. It's and out of the box old 2925. If we get out of the 10's we'd have to put the rest of the cage in it anyways but lower 10s would be welcome for sure. I think we can get to high 10.20's from where we are but we'll see.

Engine:
Scat F43 Lightweight 3.75 stroke crank
Cunningham 6" rods w/ 7/16 bolts
Racetec custom forged pistons with 10cc domes, IIRC 1.5mm rings
Howards billet main caps (middle 3)
ARP studs everywhere
Half hard block filled 010 block
Melling HV shark tooth oil pump
Clevite coated main bearings and non-coated rod bearings (got what was available really)
Block is decked, more than I'd like and the pistons are .010" out of the hole with .050" MLS gaskets. might be a thou or two thicker than that
Cam is Jones R78440-80440-111 260/267 @.050", .440"/.440" Lobe Lift, 111 LSA
Jones lifters XLR-8R01
3/8" comp magnum pushrods
Comp magnum rockers 1.6i/1.5e
Jones springs
Cloyes Double roller and timing cover
Edelbrock Victor Jr. heads, 64cc chamber, 2.08 intake, 1.60 ex. (heads were decked a touch to clean them up)
Comp stud girdles
Edelbrock 2925 super victor intake
HVH 1" super sucker spacer
Pro Systems 780ish CFM Carb
Hooker 1-7/8" x 3.5" headers
Collector extensions with 3.5" extreme mufflers
ATI Aluminum shell balancer
MSD billet dist w/ 6AL box
55gpm electric water pump

Magna fuel Prostar 500
-12 PTFE supply
-10 PTFE to regulator
-8 bypass at pump and feed to carb
Magna fuel regulator (dead head type)

Trans:
TCI Powerglide with transbrake, 1.76 low gear
ATI 8" converter, flashes to 6000. It came out a little loose probably because the car is heavier than I expected if the scales are correct at the track
TCI SFI flexplate

3.5" aluminum driveshaft w/ 1350 joints

Narrowed 9" with aluminum Yukon center, spool, 4.56, 35 spline axles
Caltracs with sliders
Calvert split mono -1" springs with 1.5" lowering blocks
QA1 double adjustable shocks all around
Smith Racecraft rack and pinion, and throttle setup
Fat man fab narrowed control arms
29x14.50x15 Hoosier DOT slicks

20220305_135835.jpg

20211130_165903.jpg

20220120_174408.jpg

20220108_144826.jpg

20210904_154257.jpg

20210324_163008.jpg

[steve cowan]

Very cool,
Thanks for sharing.
Have the cylinder heads been rubbed on much?
Good combination, ported manifold would help I think
The way your set up bottom 10s are quite achievable