Price help. Tunnel port 427

[427Pantera]

Block used was an OEM '66 block
Standard bore
11/1 compression
tunnel port heads and single plane 2X4 intake with holley 650's
Arias forged pistons
My copy of the build is too fuzzy to make out much more of the internals, paperwork is in transit, so I will add what I can later.
Engine was built to run nitros, but paperwork states it was tested after install and once on track then shut off.
The huge volume of paperwork I got when I bought the car it's in has receipts for everything down to nuts and bolts, fuel, oil etc.,but only one receipt for a tank of nitros and the bottle does feel almost completly full.
Dyno sheets say 485 hp to the wheels before a bump to the 11/1 compression.
Engine has 25K on it since installed

Engine built by Earl Wade Performance in CA (I believe he's now in TX?)

Thanks for any help.



hese are full size so click at own risk:

[427Pantera]

I guess a better title would be what is the value?
I'm either letting it go with the car or keeping it for my torino.
thanks

[undy]

A couple things.

600 Holleys, not 650s...

That sure looks like an engine dyno sheet, not a chassis dyno. Being from a machine shop sorta points in that direction too. If that's so then you'd be looking at around 400 RWHP, depending on the variables. Looking at the engine and not knowing cam/stroke/head work etc the 485 FWHP sounds reasonable too.

I wouldn't give over $5K to $7K for it.

[427Pantera]

Thanks Undy,
yes, 600 not 650 sorry.
Since I wasn't able to talk to the previous owner I'm relying on the paperwork for info and it stated the engine was pulled from the car after the synopsis runs and sent back because the owner didn't like the numbers and wanted more. So, chassis dyno was my assumption.

[FWB]

I'm with Undy on the value......and i wouldn't be impressed with those numbers unless its a close to stock build internally.
the tunnel ports usually bring more money.......

[blykins]

Those are flywheel numbers. Very mild cam to peak at 5800.

I think you'd actually get a little more out of it if you parted it out. Good S/O blocks bring good money, as well as the TP heads and TW intake.

[Jerry Clayton]

Earl Wade---didn't he work with Dyno Don Nickelson???

[mreid]

I agree with Brent on the part out. If you keep it, a new cam and replacement of those crappy 0-1850 vacuum secondary Holley carbs is in order. You would actually make better power with a pair of 390 HP series carbs and a more aggressive cam. Plus, it would look cooler...

[ERA Chas]

Originally Posted by Jerry Clayton

Earl Wade---didn't he work with Dyno Don Nickelson???

Yes Jerry, he built Cammers for Dyno. (And others later).

[427Pantera]

As I said in my second post, I'm just trying to get an idea of value in order to decide whether to sell the car as a rolling chassis and put the 427 into the '68 Torino Fastback I bought for my dad before he passed away.
I appreciate all the info so far, as well as the modification suggestions so far.
The engine was built and installed in the car back in '89, so I;m sure there are some improvements/upgrades I can do if I decide to keep the motor for the Fastback.

[lovehamr]

Couple of things;
#1 if this is a tunnel port how is it using a tunnel wedge intake. Even though they both have "tunnel" in the name they are not the same nor are they interchangeable and the value could vary greatly.

#2 did I read right that this engine was built for NO2 and with 11 to 1 compression? I've never built an engine for NO2 but aren't the CRs normally lower like a supercharged engine?

Steve

[Jerry Clayton]

Does the push rod go thru a tube in the middle of the port???

With nitros you don't need to lower the compression

[427Pantera]

Originally Posted by lovehamr

Couple of things;
#1 if this is a tunnel port how is it using a tunnel wedge intake. Even though they both have "tunnel" in the name they are not the same nor are they interchangeable and the value could vary greatly.

#2 did I read right that this engine was built for NO2 and with 11 to 1 compression? I've never built an engine for NO2 but aren't the CRs normally lower like a supercharged engine?

Steve

Hey Steve,
It's a tunnel port intake and heads, the synopsis sheet is the only place a wedge intake is referenced. An error on their part.
Aside from the shape of the intake runners, the easiest visual clue on the tunnelport is the 6 intake bolts per side.

Jerry is right, no need for low compression with N2°.
I'm not a fan of nitrous even on a cheap motor, I'd never consider it for a side oiler if I was building one. Just my opinion.