Quote Please?

[Hellstorm]

You guys never answer my emails

I would like a quote on a shortblock if yall can build it for me.

A 2.2 stroker using a gen3 block with the following:

5S crank destroked to 3S rod sizes, balanced with rotating assembly, micropolished
King Engine Bearings & Thrust Washers
CP 86.5MM forged pistons, 9.0:1 compression, .020 over bore
Eagle H-Beam Rods
ARP Headstuds
New OEM seals, gaskets, oil strainers, rear seal retainer
Cometic MLS Headgasket
OEM Oil Pump
Water Pump
Timing Belt, tensioner

Or something to that effect. I have a core and i dont need to ship because i will just drive to you. LMK please.

[kblake]

Quotes for nonstandard, non-shelf projects take longer, and we're super-busy right now, with 21 customer cars at the shop.

We don't recommend a 2.2L stroker using a Gen 3 block because the gen 3 blocks have a problem with thin walls, and there is an excellent chance that you would crack the block.

[Hellstorm]

Ok its cool.... what exactly are the conditions under which they crack?

[kblake]

When they are overbored, they crack. To use a 3S block to make a 2.2L stroker requires a .040 overbore. That doesn't leave enough material to keep the block from cracking. (on some Gen 3s)

[Hellstorm]

Oh i see.....well what makes one different from the other? And how would i know if mine would be able to be bored without cracking? Sry about all the questions.... :/

[mopwer]

If you use the 5s block instead of the 3s, the block is cast in the larger cyl diameter. Therefore just a clean-up is usually needed leaving more material in the cyl. walls.

Greg

[mopwer]

Reading your specs again, it sounds like you are asking to destroke the 2.2 crank to the 3s thow. Not sure why you would do this as opposed to using the 3s crank.

Greg

[Sang]

Originally Posted by mopwer

Reading your specs again, it sounds like you are asking to destroke the 2.2 crank to the 3s thow. Not sure why you would do this as opposed to using the 3s crank.

Greg

Using a 5S crank in a 3S block gives you more displacement...you'll need to have to the crank machined down to accept the 3S rods however, but still more displacement over running a 3S crank.

[Hellstorm]

Well the info on your site says its a .020 overbore....and you say
.040 which one is it? And what makes the gen3 blocks differnet from the gen2. i thought they were the same?

[kblake]

We can do a 3S block with a .020 overbore, but you will end up with less displacement. Team Toyota Europe found that the only solution was to ultrasound the blocks, and find one with thicker walls...obviously this is very hit or miss, on a typical budget, and so we recommend against it. Some Gen 2s have cracked with the .040 overbore, but it's much less common. Nobody has managed to crack a 5S block to date, as far as I'm aware.

Ken

[mopwer]

Originally Posted by Sang

Using a 5S crank in a 3S block gives you more displacement...you'll need to have to the crank machined down to accept the 3S rods however, but still more displacement over running a 3S crank.

True, but "destroke" means to reduce the stroke and it could be done if you machined the crank to reduce the stroke and the rod journal diameters. I think he meant "turn" the rod journals, not "destroke". Symantics at this point.

Originally Posted by Hellstorm

A 2.2 stroker using a gen3 block with the following:

5S crank destroked to 3S rod sizes...

Greg

[ATSAaron]

Originally Posted by mopwer

True, but "destroke" means to reduce the stroke and it could be done if you machined the crank to reduce the stroke and the rod journal diameters. I think he meant "turn" the rod journals, not "destroke". Symantics at this point.

Greg

I have a pretty good idea where he read it. One of our competitors calls it "destroking." I just laughed and didn't bother to correct him, now I can tell who is calling me after they have spoken to this competitor because they ask for a "destroked" crank. hehe. What I am sure he means is that he wants the journals turned down so he can use a 3S sized rod.

BTW as of early last year all of our 3S strokers are built with .020 (aka .5mm) oversized pistons. We also do not use CP pistons. We worked with Wiseco to design our own piston for our strokers.

Aaron