Thought I would share my progress with this.

Started out as a 426 'crate' engine. Supposed to be 9-1 compression but I measured it at 8.4-1.

I was running it with dual AVS2 carbs, exhaust manifolds and a dual 2.5" exhaust.

Cam was Comp 227-249 on a 107 lsa, hydraulic flat tappet.

Made 405rwhp on a Dynojet but nosed over hard at 6k. (Valvesprings were single with only 100lbs on the seat.)



Here is my plan which continually changes-

Edelbrock pro flo 4, 2x4 EFI

Spent about 30 hours now porting the iron heads. Concentrated on bowl and guide boss while also raising the port .090 to match the Edelbrock intake.

Need to get the guides done along with valve job and flow #'s still.

Ordered Morel "black mamba lite"solid roller lifters. Pressurized oil to the roller, no bearing or bushing.

Probably 260-ish @.050 cam with under .650 lift. Running stock rocker arms and thought it would be good to keep lift reasonable.

Plan to run lash caps. Does anyone ever order a slightly shorter valve to maintain geometry or non issue?

Ordered CP 4.31 bore pistons, 102cc dome. .043/.043 3mm. Will be 11.9-1

Will likely build headers as I want stainless but don't want to pay 2k for them.

That's it for now. Will update as I get further along.

Looks great - keep the updates coming !

Nice work on that iron, looking forward to flow numbers and updates.

Polishing the intake port walls leads to fuel separating from the air at idle and low air speeds, you might want to make them not so shiny now to help avoid that
I would check the lift at on all the valves at the retainers with checking springs to see how close your rocker arms are as far as their actual ratio are I've seen .130 lift differences when checking rocker arms from 4 different motors when I was blueprinting a NHRA stocker motor

Thanks guys.

Cab- Yes I was planning to check actual lift at all valves but good to know, that's quite a difference.

Being that it will be port injected I don't think the surface finish would be the cause of fuel separation in comparison to carbureted but the final finish on it was done with 36 grit sanding rolls so rougher than it looks.

What fuel do you intend to run in this?

93 mixed with e85 at 40-50% ethanol to start. Will reduce alcohol content from there as I get it dialed in.

Not concerned if it can't run well on just 93 octane and I suspect it won't.

If I decide it needs to at some point I can swap out the head gaskets from the .027's I'm starting out with.

I see your using a TREMEC transmission did you have to modify the torsion bar crossmember? I’m in the middle of putting in a Gforce G101a in my 69 charger and the shifter comes up straight through the crossmember. So I’m trying to figure out how to make a new crossmember so it joins back up.

No modifications to torsion bar crossmember, they notch the transmission just behind the shifter and the crossmember fits within that relief.

The car stuff is super cool and all but I'd really like to see more of that pretty looking shop, too.

Are you on garagejournal?

Or more pix here (I can't possibly be the only one)

Haha, thank you. I did have pics on garagejournal before photobucket ruined the internet.

I'll take some and update.

Kool. Looking forward to it.

Agreed...the photobucket thing definitely trashed a huge amount of formerly worthwhile information.

Well quick rundown is I bought a house that had a lot of garage space, this one was just an unfinished pole building, 36x47.

I replaced three of the trusses with curved trusses for lift clearance and built attic storage within the front two.

Had it spray foam insulated then covered the interior with steel panels called dura liner from Mendards. (same as outside skin but thinner). Easy to work with.

All led lighting. (except for string lights that I haven't taken down since my wedding)

Externally mounted heat and a/c unit. No windows so doesn't take much at all to keep at a nice temperature with the spray foam.

I did white epoxy/urethane which reflects light and makes things easy to find though I didn't do a clear topcoat which was a mistake as it shows scratches rather easily.

Wow! Nice setup.

I have garage envy

It amazes me how nice you can make a shop with enough money and desire
I'm not showing mine

makes mine look like the ghetto

Haha, thanks guys

Exactly!!
Big time!!

makes my shop look like an earthquake hit !