nick wrote:The 96+ pistons are metric. You can use whichever one, just get the correct rings to go with them(Gradon using Nick's laptop).
sorry for the dumb question, but are the rings matched to the pistons or to the cylinder walls? i.e. - if i get the 677cp pistons with rings in the ebay auction which are for 87-95 block can I use those rings in my 2000 block or do i need to get different rings?
also - anyone know of a good source for the 3214723 crankshafts? all of the parts stores list them but when it comes down to actually ordering them they can't get them. the only place i can find them is Atlanta Crankshaft Exchange for $331.00 shipped.
The rigs are matched to the piston 96 and newer are metric 1.5 mm/1.5mm/4mm in width. The ring groove width in the piston is either for metric or standard width rings.
You can check car-parts.com a Jeep junkyard or local junkyard for a crank. I think the 3214723 cranks where used from 1972-1981 amc and Jeeps. $331.00 may not be that bad of a price when you total the price for a junkyard crank, shipping, and grinding after you get it. The AMC/JEEP 6 cylinder is an expensive crank to have ground because of 7 main bearings. You will probably spend $120.00 to $130.00 for grinding. So if you figure...lets say $100.00 for a crank plus $130.00 for mag and grind plus $70.00 for shipping that's $300.00.
The block is off to the machine shop this afternoon. I went ahead and ordered the 258 crank this morning from Atlanta Crankshaft Exchange. It was a little more pricey than I wanted to spend but considering it's a 12 counterweight, .10/.10 underbore and I should have it by Wednesday I bit the bullet and ordered it.
I assume I now just need to get 4.0L replacement rod/main bearings with a .10/.10 underbore to use with the 258 crank?
I plan to order the pistons/rings, 258 rods, and ARP bolts today. Any reason why I shouldn't use the 677cp's and keep the 17.5 dish?
go4lo wrote:I've been out of the loop for the last week traveling. Just a few updates and questions:
New 0331 Head from Alabama Cylinder Head is on order - $530 shipped, should have it tomorrow.
Machine shop/friend quoted me $350 to bore/hone/wash and assemble the short block with all my supplied parts
Questions:
Following Dino's Poor Man's build can someone(or Dino) explain why the Sealed Power 677CP pistons are used instead of the H802CP/H825CP?
It's hard to find the 677CPs - anyone know of a good source?
Can I use use 4.0 crankshaft main bearings on the 4.2 crank? If so I assume the correct plan of action would be to order the reman 4.2 crank and have the machinist tell me what bore size 4.0 bearings to order?
The 677CP pistons will yield a lower CR than the H802/H825CP's thus avoiding low rpm detonation problems if you decide to use the stock cam. My stroker has a 9.25:1 CR with no decking of the block/head.
You have a '00 4.0 block so you'll need the 4.0 HO main bearings. The 4.2 main bearings won't work but you can use the 4.2 rod bearings. If you know what undersize the rod and main journals of your 4.2 crank have been reground to, you can order the appropriate undersize bearings. You'll find a list of part numbers on my stroker build site, and you'll find further useful information on the "assembly" page.
The crank came in today and to my frustration it's a 4 weight crank - casting number 3235477,after repeatedly asking the sales rep at Atlanta Crankshaft Exchange to confirm the casting number and weight of the crank before placing the order. I even told him it should weight 66lbs, he put me on hold and supposedly verified that indeed it weighted 66lbs. That really pisses me off! It was too late to call when I got home today from work, I'll call tomorrow and update the post.
Also it's impossible to find the Mopar .043 head gasket. It's on backorder everywhere. What is the Carquest part number for the Victor Reinz version?
