the last 402 i did i lost my A$$ on geat engines but every one wants bigger then 454 for a driver a sbc but for big TQ and power the bbc and i have built many 496 and up the 402 would be good but would be easer to go up on CID like the 454 + if you do not have a 454 then i would build the 402 with some small head work and a hyd roller cam will work good .BUT i may not be the best to post on this i drive a blown 548 and a 632 on the street and think thats just fine and plan to go much bigger