Freshly rebuilt 455 4 bolt main, with 0 hours to date. Bored .30 over. The motor has flat top forged Federal Mogul pistons with valve reliefs, #197 HO heads(111 cc), stock crank and rods, 1.6 Comp. Cam roller rockers, Double roller timing chain and Comp. Cam Hydraulic Magnum Cam with specs...
Part Number 51-234-4
Engine 1955-1981 Pontiac
265ci-455ci
8cyl.
Grind Number P 280H-10
Description

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------------------- Intake---- Exhaust
Valve Adjustment ------0 --------0
Gross Valve Lift------ 0.48 ------ 0.48
Duration At 0.006 Tappet Lift 280 280

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Valve Timing At 0.006
--------Open---- Close
Intake---- 34------ 66
Exhaust--- 74 ------ 26

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These Specs Are For The Cam Installed At 106 Intake CL
-----------------Intake ----Exhaust
Duration At 0.05--- 230 ------230
Lobe Lift---------- 0.32 ------ 0.32
Lobe Separation 110

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Recommended Valve Springs 995-16

Perhaps someone is interested in a numbers matching HO motor for their car. I don't need the number since my car was originally a 350 and I'm looking for substantially more power than even this motor will offer. The work was done on the motor by Harbor Auto Restorations in Rockledge Florida. The valve spring seats were machined for the Comp. Cams springs to match the cam. The valve covers and intake are not in the deal I don't think. I need to see if Jim Butler thinks the intake will work with his combo. I'm looking to offset the cost of the Jim Butler Performance motor. I also have a proffesionally redone Rochester carb that can go with this motor and a clean set of original HO exhaust manifolds for this motor which would also be part of the sale. Is there enough qulality interest? Thats what I'm trying to gauge. I've spent alot of money on asssembly and figure rather than open it all back up and start changing things radically to get the 600+ HP I'm looking for I could sell it to someone who needs a high quality numbers matching 455 to complete their car.
I'll post the numbers from the heads and block early next week when the shop can get them for me.

Long Block, Exhaust manifolds, and Rochester carb for sale.

Fair price?

I actually contemplated buying it..

Seperate the motor and the going rates on CP/PY/Hemmings and Ebay breaks down like this.

Heads worth $14-1800 (maybe more if rebuilt)

Block, HO 455 rebuilt ($23-3000) Block/crank/rods alone unmachined probably $12-1600

HO exhaust $4-600
Carb is a bonus.

I have the 7F6 HO heads and a 71 and 72 HO intakes. I needed the 71 block/heads/exhaust for the 71 intake I have. But I seriously believe the seller will not let it go for any less than $5000-6000 (comparable Butler motor).

One can never recoup all machining costs on a rebuilt motor, even if never fired..Unless the builder is Butler/Nunzi/Kauffman/Keiffer. Other than those Pontiac builders, the machining costs you are buying with this motor is a crap shoot.

Assembled, as she sits without the intake (ditch it anyhow, a 455 HO motor without an HO intake looks horrible IMO) I say $4500-5000 and he will have to eat half of the machining and labor. I would pay for all the parts, half of the labor and $45-5000 for this assembly.

The reason HO heads do not sell as much as RA IV (comparable heads) is the huge 111 cc chambers which yeilds only 8.1 to 8.5 to 1 on a 455. If I were to buy that motor, I would put an 871 BDS blower on top with those heads..at 8.5 to 1, that would be a killer motor!

The problem with this motor is the overall cost versus HP. You could build a 455 with 6X heads and have the same or more HP than the 335 advertised for 71 HO without having to decrease the value of the HO motor by milling the heads and intake to raise the compression. Say you buy it, and decide to not use, you could always recoup your money if you do not modify the heads in any way.
If you were looking for an HO motor for an HO car you owned, I would pay the money, but for someone looking for a motor just cause, address the fact that there is no intake, valve covers, dist, accessories, fuel pump wires, throttle linkage..and that adds another $8-1000 on top of this. Add another $4-500 for the correct HO intake if desired. With that, for a low compression 455 that is "mild" that is alot of money for little HP.

Kauffman builds 455 combos with intake/carb/dist/valve covers for $6500-7000 and dyno proven.

Butlers 455 combos have 200-250 HP more than this HO motor can provide and are $3000 more.

Fair price to someone who really wanted this for a 72 HO car? More than someone who wanted a 455 for a non-specific application. I would be willing to pay $4500 for the shortblock/heads/exhaust and carb, if the heads have been redone, maybe another $500

I think $4500 to $5000 is more than fair. I myself would not pay more than $3000 unless I had the perfect car(right date) for it.
Jim

Jim,

I have some premier land in Florida, 20 acres for 3 grand. My old rusted out 67 is still there..you can have it. Actually it is in Palm Bay Florida where I spent 7 years but came back here due to job offer.

I think it is under 3 feet of swamp though from what my neighbor tells me with the rain. There is a 20x30 barn on it too.

Did that black 67 sell? Really liked it.. I'll trade you the land for that tri power 65 you have??

Sounds like you can get quite a bit for $3000 LOL. Did you keep the mineral rights? I could do some off shore oil drilling. Woops, that's right, Bush II won't let anyone drill in his water, just Alaska and anywhere else beautiful and unspoiled.

I sold my 67 400 car to a friend in GR. It is a great original car and it went too cheap but I still made a little money($500). I enjoyed my time with it.

The 65 tri-power is my friends car. I help him as much as I can. He owns a great Mexican restaurant, say no more!

Jim