Just wondering if the springs from a car with a 302 are the same as a 351? is there a big weight difference? Thanks

 

No they're not the same, the 351 is heavier.

 

What would you recommend if I had a 302 with 351 heads? Aren't they pretty much the same block? Thanks

 

nah, they are differnt blocks.......

260-289-302-331-347 etc is the same block.....

a 351 is a step above.....but i think the heads still bolt onto the other block.

 

351 has a taller deck and bigger mains.

 

But, as to the original question. The 302 springs will be fine with a 302 engine, with 351 heads. Or if you wanted to save some more weight, get a set of aluminum heads.

Cheers.....[sm=icon_cheers.gif]

 

The differnce isnt enough to realy cause problems on a healthy suspension, swapping in a 351 wont make the front crossmember drag the ground or anything. Now a 460 is another thing entirely.

 

Well the problem I have is that I have 351 springs in a 67 with a 302 w/ 351 heads. It sits high in front or low in the back but I cant tell. My rear springs are original so I am assuming that they are sagging in the rear. But it also could be from the 351 springs in the front. Thanks alot.

 

Keep in mind that 67's (and most others for that matter) are high in the front to begin with. I have a 289 w/original springs and it looks like its pointing up a bit, as do all other photos I've seen of 67s. That's why most of the suspension kits sell with a one inch front end drop, and it looks like it sits more evenly with that.

 

Yeah, new 1" drop springs along with new KYB gas adjust shocks will do wonders to tighten up control of the front. Then add some new 1" sway bars. Throw some new leaf springs in the rear with KYB's and sway bars.