How easy or hard is it

[1958 delivery]

To do a 4" stroker kit in a 348 block?

 

[Ishiftem]

Easy.

 

[1958 delivery]

Bolt in, no grinding etc?

 

[Murphdog]

The connecting rod you use can have considerable affect. It will/may need clearancing notches in the bottom of the cylinder just below the pan rail. I did a 3.76 stroke (396 crank) a couple years ago with Eagle SIR rods and had to barely touch a couple spots. It was a used package that came thru here. Anything I do new will be using Molnar rods. You can see the notches below, 4" crank, 4.380 bore.
Jeff

 

[1958 delivery]

I'm not doing one but Showcars sells a kit and someone had ask about it and I was wondering if the bugs were worked out since they don't seem very experienced

 

[Ishiftem]

Just like murph said. An I beam rod would likely need a minimum notching. H beam with 7/16 bolts would need the bores notched and if using a 348 pan it may get need to be bumped out in a few places especially under the 1-2 rods. Not a big deal.

 

[alexm900]

It's been some time but the engine I have is originally a 348 with the 4" stroker kit from Jack, assembled by Akers. The Eagle crank was a bit rough out of the box but got fixed eventually. The build is under post titled '1959 El Camino 348 Stroker', and iirc no major hurdles.

 

[61BUBBLE348]

I did Scat 4" kits in a 348 and a 409, I had to create clearance for the 348 655 block, the 409 814 block was OK.
both stroke kits came with different style rods, I did this 3 years ago and can't remember what rods were in both engines. so wasn't sure if 1 set of rods gave more clearance than the other set.