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69 vette help needed

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nifty:
k got a call from my mate gus (80vette).my other mate with the L71 69 needs some help with engine numbers...
now ive posted pics of his 69 427/435hp L71 before.BUT hes giving it the final once over for s.a. lhd rego.....and heres where it becomes funny???
the engine doesnt have an engine number??? its gone,the only number he found somewhere on motor(i dont know i didnt ask) tells him the engine was made in july 1970....so it cant be a 427???? must be a 454...or could it be a CE block..
so he wold like to know is there anyway to tell what horsepower rating it should be....i was told the tacho redline and oil pressure gauge will tell the truth...
hes  thinking its either a 390 or a 400hp car....any help???
body number tells its a big block car.

jolinari:
if the engine is of the year 1970....then the big blocks are the following:

 
CGW 454-cid 390-hp V-8 10.25:1 manual four-barrel    
CZU 454-cid 390-hp V-8 10.25:1 manual four-barrel    
CZL 454-cid 465-hp V-8 11.25:1 manual four-barrel aluminum heads, transistor ignition  
CZN 454-cid 465-hp V-8 11.25:1 THM-400 automatic four-barrel aluminum heads, transistor ignition  
CRI 454-cid 390-hp V-8 10.25:1 manual four-barrel    
CRJ 454-cid 390-hp V-8 10.25:1 THM-400 automatic four-barrel


Can you provide a number or something? VIN? etc...

nifty:
just sent him a text...but he might be alseep

RHD.68.l89:
Can't tell the engine from the VIN # in a 69.
There are a whole lot of tell tales to determine BB/ SB and what HP.
The console plate can be changed quite easily so that is not usually trusted.
BB has caps on the diff yokes as opposed to straps for SB. Rear sway bar is standard for BB, and I think it is optional for F41 SB.
Each engine had its own redline and changing Tachs is not usually done so it is a good starting point.
Does it have a fuel return line? any 69 fitted with tripower had only the feed line, no return.
Block for 454 and 427 are identical bore so it might be a later block with 427 crank in it. See if the damper and flywheel are externally balanced.
One code for the date is cast into the block. If the date code he is working from is stamped then it should also have a usage code which will tell where the block was originally intended to be used. CE blocks have "CE" stamped on the pad.
Transistor ignition? if it is not fitted, are there holes in the inner guard forward of the radiator on the LHS?
If the car was put together from parts things will be all over the place. Good luck determining what it was and what it is.
;42

nifty:
thanks that helps... any info on redlines or oil pressure?????cant seem to find anything on web at all.

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