Does anyone know of a list of modifications that is out there that i can do to my stock TPI manifold to prep it for the Vortec heads. I know it doesnt all just bolt together and that there are some mod's that need to be done. any links or thought?

-jim

 

scoggin dickey has some vortecs modded to fit the older bolt pattern like pre87 (non centerbolt) so i would say that a machine shop can drill and tap your new v-tec heads to do this but the runner hight is a lil diff,you would have to open-up the roof of a stock tpi base,or use an aftermarket base.....

 

by the time you have spent all this cash you can call sdpc and purchase their v-tech tpi base 400.00,i would buy it !less headaches!!!!!!!!!!!!!!!!!!!!!!!!!