Bigboy 68
it is what it is
I just purchased a nice set of 3.59 stroker pistons they have .927 pins I need to know what rods I need to get and also where would I get a forged stroker crank for this set up thank you in advance
P.m. senti have a set of H beam rods with .927 pin size 6.123 rod length for small block Mopar. I bought them by mistake. They currently sell for 265 dollars....
H Beam 6.123 2.125 .927 Bronze Bush 4340 Connecting Rods Chrysler 318 340 360
Shipped to your door....190.00....brand new in the box.
3.58 stroke in a 340 block?I just purchased a nice set of 3.59 stroker pistons they have .927 pins I need to know what rods I need to get and also where would I get a forged stroker crank for this set up thank you in advance
What is the part number and information (like compression ratio) for your pistons?I just purchased a nice set of 3.59 stroker pistons they have .927 pins I need to know what rods I need to get and also where would I get a forged stroker crank for this set up thank you in advance
Skip the 3.59 thing......Confusing to me is the 3.59 number... either it's 3.58 (Mopar 360 but not a stroker)
If Bigboy 68 is Rodney (memory?) he has more mopar stuff than you and me combined. And my garage is full, with the yard overflowing. It’s more about the deal, unique builds for him. He has been known to make full size wagons go fast.Confusing to me is the 3.59 number... either it's 3.58 (Mopar 360 but not a stroker), or it's 3.79 which in fact would be a stroker crank.
There are cranks for both strokes available... what rod length to use depends solely on the compression height of your pistons.
Btw. funny strategy to buy pistons first and then worry about crank and rods?
The 355 crank was 3.51” (?yellow alloy?) forged. Not as strong as 4340. I think it was 10XX something alloy.Skip the 3.59 thing......
A 360’s crank stroke is commonly referred at 3.58.
A 340’s stroke is 3.31.
The old tyme stroker trick in the ‘70’s was to cut the 360 crank to fit into the 340. This with a .030 overbore makes a 372 cid engine. Or 372.61 exactly which some places round up to 373. Which is fine. Factory does this as well. Up and down in the cid. This makes the stock 360 crank a stroker crank for the 273/318/340.
I don’t know if there were big stroke stroker cranks available back then. I’m sure the 3.55 cid stroker crank and the down size crank for the 5.0 SCCA racing effort was. I don’t know about the other up stroke cranks like the 3.79 and all the others in between.
Bigboy’s high compression 372 should be a rip to drive.
If Bigboy 68 is Rodney (memory?) he has more mopar stuff than you and me combined. And my garage is full, with the yard overflowing. It’s more about the deal, unique builds for him. He has been known to make full size wagons go fast.
I never got to see his 67/68 Dart build though.
I understand bob mills to be a villain, not the same person I was thinkingHis name is Bob/Robert Mills, aka Superdart340 or Superdart426.
Interesting to see what combo he goes with, I'm confused (easily) already.
The 355 crank was 3.51” (?yellow alloy?) forged. Not as strong as 4340. I think it was 10XX something alloy.
This is what he bought:Those pistons are probably made for NHRA Stock or Super Stock applications...
The rules allow for .010 over stroke, making a OE 360 crank 3.59. it is stamped 3.59 so that the .067 or .070 deck Ht will be correct when the NHRA tech checks it in tear-down.
(of coarse the engine builder would know that.. it would be made up for, when the block is cut)
I have that crank 3.51” and those rods that 70aarcuda sold bigboy 68.The 3.55 cranks comes in several (*3 I think*) sizes.
There a 1053/1054... ahhhh I forget. True, not as strong as a 4340. But that is it a worry point.
The particular one I have is (IIRC....) a 3.45 stroke.
Those are not the Pistons that I bought eBay item number
Yeah.... same JE 517 number...