340 Build

[69Valiant4spd]

What I'd like to do is take a 69 date coded 340 block and build either 367 or 410 stroker w/6 Pak. Will 2 bolt mains be ok or can block be machined for 4 bolt? Will the block need to be clearanced for the longer stroke? Doable or not?

 

[fastfish1967]

Sure it's doable. I'm not sure about the clearance issue but use ARP main studs instead of bolts, double check all clearances and use good quality parts throughout. Good luck!

 

[340plot]

do you have an engine yet?

 

[70aarcuda]

if you use I beam rods they will clear with a 4 inch stroke...

Scat 4340 I beam rods....

 

[69Valiant4spd]

do you have an engine yet?

No, but I know where one is.

 

[340plot]

ok, well, i have a 7/11/69 340. just sitting, needs to go

 

[rumblefish360]

What I'd like to do is take a 69 date coded 340 block and build either 367 or 410 stroker w/6 Pak. Will 2 bolt mains be ok or can block be machined for 4 bolt? Will the block need to be clearanced for the longer stroke? Doable or not?

With a 4 inch stroke crank, some rods will need to be clearanced. I forget which ones will not clear.

On the 3.58 crank, everything will drop in without issue. (.030 over gives you 372 cubes)

2 bolt mains will hold 600+ HP. Skip the 4 bolt.

 

[autoxcuda]

if you use I beam rods they will clear with a 4 inch stroke...

Scat 4340 I beam rods....

I agree.

I just did this with a Scat kit in a 340 I bought from OU812 (Brian) at IMM. No clearancing needed at all with thier I beam rods.

 

[mickey_bigdaddy]

ok, well, i have a 7/11/69 340. just sitting, needs to go

Send PM, I'd be intested in price and condition.

 

[Mr Hemi]

I love the 3.79 Stroke. If you want the revs!