Small-block in a big-block chassis?

[MaineShark]

Are there any disadvantages to doing this? I was thinking that it would be nice to have the higher-strength big-block drivetrain when I do my '73 project. However, are there any disadvantages to the switch in this direction?

Joe

 

[Tom73]

Big block chassis? :confused Same chassis. Drivetrain? Same there except for the U-joints. The big block and high performance small blocks used u-joints that used caps while the others use the standard straps.

A big block chassis would have heaver rate springs that you may need to replace with softer springs (and small sway bar) due to the lighter weight of the small block.

tom..

 

[Corzvette69]

;stupid

one of the previous owners of my car had the big block springs put in up front and it sits really high. i cant stand it one bit.

 

[MaineShark]

The only difference was the U-joints? I was under the impression that the big-block had a significantly-upgraded drivetrain. Of course, I could be mistaken.

My basic question was whether buying the big-block chassis would be a good idea, or upgrading one that came with a small-block, since I'm sure we all know how expensive parts can get.

However, if it really is just the U-joints, I'm thinking that a small-block chassis would be better.

Joe

 

[bradfordsvettes]

just u-joints and u-joint retainers more beefy the sway bars and springs would also be a different rate all the rest mostly the same my 2 cents steve

 

[Tom73]

The only difference was the U-joints? I was under the impression that the big-block had a significantly-upgraded drivetrain.

That is what makes the older Vettes so nice....the drive train was over built. The base small block had the same transmission, driveshaft, diff, axle shafts as the 435hp 427 . Only differences were the u-joints. Very easy to upgrade. No real concerns if hot rodding your small block.

tom...