402 short blocks for under $3500.
Originally Posted by v8maro
Why not iron? Isn't it stronger?
supposedly the ls2's have an aluminum block, but iron sleeves? thought i heard that somewhere, someone chime in and correct me.
What are the minimum head and cam requirements? Can we swap short blocks but keep the top end of a mid range H/C car? For instance some stage 2 heads and a ~228 cam, will that be enough to support the 402 CID? Assuming the same heads and cam on the two shortblocks, will the increase in CID alone be enough to offset the added weight? Would the gains be minimal if any considering how mild the heads and cam would become compared to how agressive they were on a 346?
Thanks, -T
Thanks, -T
Arent you also selling the rotating assemblys for 2500? The only difference is the block, right? How much are the LS2 blocks estimated to go for? I guess even if the price difference isnt too great, you still lose out on assembly. Might be worth it if youre bent on having a light big cube motor. Do you think we'd have to clearance the LS2 block to accomodate the longer stroke?
-T
-T
Staging Lane
Joined: Jan 2004
Posts: 70
Likes: 0
From: Oak Lawn IL
i heard there was no warrenty........how about a discount for board members, how much is shipping say to chicago, all the GM mags have been advertising this block for a month or so, and the price in the mag is 3495.00 how about a hook up ??
I have a call into the GM warehouse that we deal with to see if there are any prices for the LS2 blocks available. The compression ratios listed are nominal. The final ratio will depend on the heads and gaskets that are used (not sure what they used for these). There is no warranty on these assemblies and SLP's regular retail is $3595. We discounted them a little plus you can save some extra $ by placing your order online.
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Originally Posted by OliGeorgs
What is the weight difference between iron and aluminum block? I have a stock Z-28, how much weight would I add by just swapping the shortblocks?
Yeah, are we talking a couple hundred lbs here or like 500+?
I think its 100 - 150 Lbs. But this extra weight is in the worst possible place - up front. Under power, It makes it all the more difficult to lift the front and transfer weight distrobution to the rear wheels for traction. Thats why people bother with battery relocation. You still have the weight of the battery, but having it in the back is better.
Edit: If a guy in the nines says its 80 Lbs. Listen to him, not me!
Edit: If a guy in the nines says its 80 Lbs. Listen to him, not me!
Staging Lane
Joined: Jan 2004
Posts: 70
Likes: 0
From: Oak Lawn IL
I think GM high performance magazine said the differance was about 60 lbs, and yes, when you bouild a blower motor, you want low compression, I believe the reason is, there is more (volume of air fuel mix) in a low compression engine. how much is the shipping weight ??
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Originally Posted by v8maro
I really don't see why 60-80lbs is that big of a deal...??? What is the price difference?
Quite a lot i would say. The LS2 is a 6 L Alum and I do not think it is readily available on the market yet.
I would like to know what rod bolts are used on this 402 and can it handle 7000 rpm? without throwing a rod.