1969 Verify Big Block

[Bob Wagenhals]

I am looking at purchasing a 1969 Convertible Red with Black vinyl and beige top. No: power windows, steering, brakes or AC. Has Big block 454 replacement with 4 speed (could be original). Console says 11:1 427 435. Hood has 427 trim.
How do I detrermine easily if it was an original Big Block with out build sheet. Was there a specific Tach? Did the original universal joints have different fasteners? Anything that obvious? Anything hidden that I could look for?

[Terry F.]

Re: 1969 Verify Big Block

Tach would be unique to the 435, the redline would start at 6500. The rear end would have a sway bar, the half shafts would have casted u-joint caps and bolts (not simple steel straps with threaded ends and nut). You would also only find one fule line running from the gas tank to the engine compartment. The small block and 390hp used a vapor return line so they had two steel lines coming from the gas tank. I don't recall if the 435 used the radiator overflow (I think it did). Build sheet would identify the 435 option if still intact. That is about it. Someone may correct me but those are the major's. Terry

[Steven C.]

Re: 1969 Verify Big Block

Emission sticker (although available in reproduction, can offer a clue. I don't remember the 2-digit code for 435/4-spd, it is CN for 435/THM and maybe L88?

Steve

[Ronnie Rains]

Re: 1969 Verify Big Block

It should han a TI amp if its a 435
RDR