Had to rebuild it multiple times, posted about here multiple times already.

The longer snout crank will need to have 1cm cut off or a 1cm spacer must b used between the harmonic balancer and the balancer bolt.

 

Been thinking about this while working... plenty of spare time to do so... If you took the 4.2 block then used the 4.0 crank ( obviously you would need to have machining done.) that should take care of the de-stroking part... the rods would be the 4.2 ( ? if I remember the gm 302 it used the 327 rods on the 283 crank) then the pistons would stay the same... i might be wrong... haven't really done enough thinking and research on this yet... just was something that i was thinking about.

 

Destroking is for higher rpm, not really bottom end torque. You would use the longer 4.0 rod.

 

Ive heard about some issues but the 1 stroker i helped build with my buddy is still running strong and we didnt machine anything on it cause it was out of our budget.

 

Posted specific threads?

Sorry for nagging, but the lady friend and I have plans for this in the future, and any information would be great to have.

 

Tried searching for them yet? He said they are here... Franks not gonna do the hard work for ya... 90% of a build is research...

 

Here you go, its in El Paso Tx on craigslist


http://elpaso.en.craigslist.org/pts/2130451078.html

 

i dunno, any modification to an engine after factory is obviously going to be a little less reliable. but of all the methods i looked up this is the best way for more power. unless you get lucky and score a cheap 350/308 that is adaptable. this is what my build will entail, ive cross referenced pretty much every link on the internet on the matter haha
4.7l stroker
jeep 4.2l 3.895" crankshaft
4.0l 6.125" standard rods
silvolite pistons that are 0.060" bigger --- 0.060" bore --- cr = 9.6:1
stock cylinder head.
mill block deck down 0.020"
comp cams 68-231-4 206/214 camshaft.
quench height should be around 0.051"

that plus the aplicable gaskets and obvious eternal support modifications, and it should be a fun ride. ill probobly blow it up. but itll be fun anyways.

 

Gonna be alot of compression on that one. Should be fun while it lasts, lol.

 

Ya good luck with that... maybe arb head studs should go on that list?

 

I hope you know that stock pistons will not work with that crank and those rods. You will need a piston with a 1.38" pin height.

 

from all the accounts ive read it hold together. there are just so many variations on these strokers. the pistons compensate for the deck height so you can use the stock rods.

 

powerblock did a show with that combo.they cleaned up the head and opened up a couple of cc and it ran fine.just blew up my motor so im about to build a stroker to put back in with the 4.2 crank 4.0 rods and pistons.

 

You revived an old thread. Good job on searching!! LOL.

Chad at Golen Engines has a good source on the crankshafts BTW.

 

Scooterc-
You are only like 45 minutes from me and my son. We should get together.