Opinion on 1966 IP engine stamp.
 

Sounds like any stamp that is repainted is a giant red flag. The casting seems to be correct.

Any opinions on the stamp or casting photos?

Thanks in advance.

Can't evaluate a painted pad - clean it off (don't use anything abrasive or that can gouge the surface). :thumbs:

Thanks for the quick reply John, Its at a dealer so thats probably not gonna fly.

I have one and It was my understanding that it was a early L-72 rated at 450 HP.....I don't see the TO stamp on the pad either....What I do see is a scrambled vin number

Hmmm - well, the "numbers" do match up.

A 942 block is correct for a '66 427.

IP would be a '66 427 425 HP

Nov 23 and VIN 8584 seem to correlate.

Need to see the block casting date, and a clean engine pad.

Good Luck!

Edit - have you checked the car for other indicators as to whether it was originally a BB car?

I'd want to clean the paint off and get a real look at the stamps...I don't like how the paint is so thick and the numbers still look so clear?

I am a little worried since I noticed the tranny (3925660) is from a 68-70 car and the differential says AO. Which from my NCRS book and the web says is a 3.70 from a 327. Added some pics of those.

I'm not expecting a show car, just don't want to pay for one:)

Are there any other ways to see if it was originally a 427 car?

Thanks so much to everyone for the replies.

Rear sway bar? Half shaft u joint bolted caps vs u bolts? Which side is the hood strut on?

Cars sounds pretty suspicious to me......

Thanks++.

Sorry my knowledge suspension is limited. I don't have photos of the hood strut.
Looks like it is missing a rear sway bar?

Any sign of transistorized ignition? A must with 425hp

Rear sway bar is there in the third photo. The attachment and link are in the first and second photo.

Thanks, I will check when I see the car again. The shielding seems to cover the distributor in the photos, unless there is a clue from this photo.

That picture seems to show the TI Ignition resistance wire entering the distributor. What's with the foreign attachment on the drivers side fenderwell? Harness looks screwy and voltage regulator connector askew.


Dan

Even if the distributor has been changed there should be evidence of the amplifier or at least the wholes where it was. Then again if the front end has had previous repair all bets are off.

Sorry for the blurry pictures - they are from an older camera - don't look nearly so bad until they get enlarged. If an original BB car and the fuel line appears original and not replaced, it should have a 90 degree bend leading to the fuel pump like this repro line on my car. A SB fuel line has about a 45 degree bend in it.

http://i125.photobucket.com/albums/p...e/P1010358.jpg

A BB car should have u-joint caps at the differential side yokes like this.

http://i125.photobucket.com/albums/p...e/P1010370.jpg

Also the hood support should be on the driver side and you should not find any sign of one possibly having been on the right side.

Thanks Dan. This will come in handy when I look at the car again.

A few observations to help with the identity of some parts available with the hood open and also check the red line on the tach...The BB`s have a wider copper radiator and different core support...

Back to the engine, the IP suffix is 450 HP not 425....Same engine different suffix, rated 25 HP less....ie`.Corvette Black book`for those that must be politically correct ..........but whatever

actually the IP is somewhat rare


politically

Many threads here and at NCRS.org and all over the internet easily provide the fact that ALL the solid lifter 1966 big blocks were the same motor regardless of the first few weeks of production when GM put 450HP stickers on them then changed to 425HP stickers after that. ALL were IP assembly build ID except for the persistent rumors of a few IK blocks (425HP M22). IP is NOT rare, it is on every one of the 5000+ L72s produced in 1966. The car under discussion in this thread could be just about anything - gas line could be changed, radiator support and BB radiator added, TI added, tach changed, rear sway bar added, diff/shafts/caps changed etc etc. The best chance to clarify this car would be to verify the VIN tag under the glove box is real and undisturbed and then remove the paint from the engine pad and see if the stamping could be real and if it matches the VIN. And for a potential high dollar car like an L72, a professional expert opinion of the trim/vin/engine pad should be obtained :cheers:

The attachment is a bypass for the voltage regulator, this car shows to have been converted to an internal regulated alternator.

I also see the TI harness on the inner fender, and the pink wire should be from the starter, and the white wire showing for the TI harness.