1969 big block id

[jim ethington]

Question, I am going to look at a 69 convertible this week that is supposed to be a big block car with the wrong motor. What would be some things to tell big block from small block car? Rear end etc. Thank you.

[William O.]

Re: 1969 big block id

I would look at some the obvious:

Rear end codes.
Half shafts/u-joints (steel caps Vs "U" Bolts).
Rear Stablizer.
Front Sway bar size.

Regards,

[Dick W.]

Re: 1969 big block id

Tachometer red lines

350-300 hp 5300

350 hp 6000

427 390 5600

400 5600

435 6500

430 6500

[William O.]

Re: 1969 big block id

Oil pressure gauges:

327 300 = 60
327 350 = 60

427 390 = 60
427 430 = 80
427 435 = 80

[jim ethington]

Re: 1969 big block id

In regards to the front sway bar, what sizes were they? Thanks

[William O.]

Re: 1969 big block id

3/4" Small block
7/8" 427 Std. Base
&/8" 427 L36/L68
15/16 F-41 HD

[Dick W.]

Re: 1969 big block id

All 69 oil pressure guages 70#

[Mark #28455]

sorry, you're thinking mid-years

For 1969, all the oil pressure gauges are the same. Also, the small blocks had a 3/4" front and no rear bar and all big blocks had a 15/16" front and a 9/16" rear bar.
Mark

[William O.]

Re: sorry, you're thinking mid-years

Your right...I was stuck in mid-year data..

Regards,