turning 6bolt/2g head into 2.3 stroke engine.

[spawn87]

im in the middle of another engine build and had some questions about going 2.3 or 2.4 stocker on a hybrid motor in a 2g.

i currently have a 6 bolt clock with a 2g head in my 2g. im about to put a new virgin cranck into it but a friend told me to look into going stroke engine.

now ive read about using the 4g64 with 2g cars (6bolt or 7 bolt)
and you need a g4cs for 1g DSM.
but one thing i was told (not sure if its true so confirm) is that i can just get the crank, rod, pistons from a 2.4 (6bolt im assuming) machine my block and it will work just fine.
no need for diffirent timing belt or cam gears. now is this true and if so do i need to put a spacer on the block for piston clearance or its a direct fit (after machine work)

 

[Morris]

I'm pretty sure for a 2.4 you need the 4g64 block, and of course you will need the stroker pistons and what not.

 

[cpoindexter]

All you need is the g4cs crank, stock length 6 bolt rods, and stroker pistons which have a raised pin location, if you want to use your current 6 bolt 4g63 block. What did you have to do to get the 2g head to fit on the 6 bolt block? Just drill out the head bolt holes to fit the 11mm headstuds?

 

[spawn87]

All you need is the g4cs crank, stock length 6 bolt rods, and stroker pistons which have a raised pin location, if you want to use your current 6 bolt 4g63 block. What did you have to do to get the 2g head to fit on the 6 bolt block? Just drill out the head bolt holes to fit the 11mm headstuds?

o perfect just info i wanted thanx man... looks like its more than its worth at this point. what cars came with the g4cs crank? so if i where to use my evo pistons and 6bolt rods with that crank they would probly sit flush no?... how much does the strocker pistons stick at TDC compare to the 1g? cause evo9 pistons sit below the top.

as for my hybrid motor all you do to head is port out a oil passage and yes drill out the bolt holes to allow the ig head studs to fit. its very simple and great way for the 2g guys to get a stronger motor and still pass smog (in cali at least)

 

[spawn87]

Just wondering if i can get away with evo9 pistons or if strocker pistons are needed...
Also is it posible to use the complete g4cs block or is it like the 4g64 and need remarked cams?

 

[D's GS-T]

You need 2.3 stroker pistons to build a 2.3 stroker if that's what your asking.

 

[delta448]

Either you get custom length shorter rods (bad idea) or you use stroker specific pistons. The stroker pistons have a shorter compression height (the distance from pin center to the crown).

What head is on the G4CS, or what head are you referring to when you ask about the cams? With the DOHC turbo head you will have to remark the cam sprockets, unless you have a set of sprockets from a 94 Galant GS.

 

[spawn87]

The head im going to be using is a 2g head. ... So then i will need new rods also since my 1g rods were milled for the evo pistons.

 

[delta448]

No. Those rods will be fine. But you can't use the Evo pistons, those rods and a 100mm stroke crankshaft together no matter what you do. Evo pistons will not fill the bore of a 2.4L block.