L72 (N40) Conversion

[E S.]

Hi- I have an L72,and am considering adding N40.
I have access to a 66 big block chevelle (325 HP) with P/S. for parts.
My question is : Considering the parts that attach to the motor (pulleys, brackets, spacers, etc.); Would any or all of the big block Chevelle parts be correct for a big block (L72) Corvette?
Thanks
E.J.

[Mike T.]

Re: L72 (N40) Conversion

Hi EJ - I just added Power Steering to my 65 L78 and 66 L72. I had picked up all the pulleys, brackets etc from my local Chevy Dealer back nearly 20 years ago when they were still available but that was for one Bigblock. When I bought the L72, just about a year ago, I wound up buying those same parts as a kit from one of the local Corvette Parts Vendors. As for whether Chevelle parts will interchange, off the top, I don't know but if you can provide us the part 'numbers', I can see if they match the Vette parts I have on hand.
PS - Going to send you a PM about your L72.

[E S.]

Re: L72 (N40) Conversion

Hi Mike- Thanks for the reply- I have a friend who is a big block chevelle "guru",and I thought I might find some (or all) original parts for a conversion. I will list some part numbers-
E.J.

[Peter M.]

Re: L72 (N40) Conversion

Hi EJ,
I have had a 1966 396 chevelle with PS and I have a 67 427 corvette with PS. The short answer is the chevelle stuff won't work. If you want a more detailed explanation let me know.
Kind regards

[Keith B.]

Re: L72 (N40) Conversion

that Chevelle set up if really correct 66 parts is worth a bunch of money and very highly sought after.

[E S.]

Re: L72 (N40) Conversion

Peter- Thanks for your offer! If I decide to move forward with this project, I will certainly contact you for more info.
Thanks again
E.J.

[Keith B.]

Re: L72 (N40) Conversion

Hi EJ,
I have had a 1966 396 chevelle with PS and I have a 67 427 corvette with PS. The short answer is the chevelle stuff won't work. If you want a more detailed explanation let me know.
Kind regards

I have a 66 SS396 with factory remote PS set up and my dad has a 67 427/390 with PS. About the only thing the same is the bolts that that hold the cradle on the motor block

[E S.]

Re: L72 (N40) Conversion

Keith-Thanks for the tip- I will keep that in mind for sure- Maybe trading material?
E.J.

[Keith B.]

Re: L72 (N40) Conversion

Keith-Thanks for the tip- I will keep that in mind for sure- Maybe trading material?
E.J.

[Joe L.]

Re: L72 (N40) Conversion

Hi- I have an L72,and am considering adding N40.
I have access to a 66 big block chevelle (325 HP) with P/S. for parts.
My question is : Considering the parts that attach to the motor (pulleys, brackets, spacers, etc.); Would any or all of the big block Chevelle parts be correct for a big block (L72) Corvette?
Thanks
E.J.

EJ------


Chevelles used a completely different power steering system than Corvette so few, if any, of the parts will interchange. The Corvette system is basically unique to Corvettes although it was used on some 1958-64 passenger cars. Keep in mind that the 1963-82 Corvette front suspension is, basically, the same as 1958-64 passenger car.

[E S.]

Re: L72 (N40) Conversion

Joe -I realize that the parts that attach to the chassis/ susp. are completely different, I thought there might be a chance that some of the components that bolt to the ENGINE (pump,brackets, pulleys,spacers, etc.) might be the same, whether the ENGINE was installed in a Corvette, Chevelle, or a big chevy for that matter.
I was just thinking of maybe saving a little money,and maybe not having to use any more repro parts than is absolutely necessary.
BTW-Thank you for the info. and insight that you continue to provide !
E.J.

[Joe L.]

Re: L72 (N40) Conversion

Joe -I realize that the parts that attach to the chassis/ susp. are completely different, I thought there might be a chance that some of the components that bolt to the ENGINE (pump,brackets, pulleys,spacers, etc.) might be the same, whether the ENGINE was installed in a Corvette, Chevelle, or a big chevy for that matter.
I was just thinking of maybe saving a little money,and maybe not having to use any more repro parts than is absolutely necessary.
BTW-Thank you for the info. and insight that you continue to provide !
E.J.

E.J.-------


I'm out-of-town right now so I cannot check my references. However, I think the pump is probably the same between Chevelle and Corvette. Some of the pulleys MAY be the same. Otherwise, I doubt much commonality.

[Keith B.]

Re: L72 (N40) Conversion

Joe the pump it self may be the same but Chevelles use a remote reservoir where as Corvettes use a integral reservoir onto the pump that is Corvette specific. While Chevelles use a short water pump like Corvettes the pulleys are not the same. Like I said earlier the attaching hardware is about the only things that will interchange