89 TTA, stock engine with new chain springs and all seals, PT-52 running 25 psi with E85, ecu-GN, zero knock, plugs looked safe, 78k miles, Husek trans, ran 7.70's at 92 in the 1/8th. My crank more or less had a clean break in between #1 and #2 rods with no warning. The rods were still on the journals but it did "grow" a little in length pushing the front crank snout forward. The crank locked up tight between the back of the #1 main cap and the thrust bearing. When it broke, I was on the highway at 3/4 throttle. The #1 cylinder quit spinning, and the remaining 5 were still propelled by the transmission. I put it in neutral with all the chaos going on under the hood, and everything went quiet. #2-6 pistons all have dimples from the valves, and the bottom of #1 and #2 piston skirts were battered by counterweights. #1 main cap is loose in the register, but all the webbing and cylinder walls look good.
Good news is I can reuse the heads and block. Bad news is I have to buy alot of new parts and machine work. My general plan is as follows:
Forged rotating assembly
.010 pistons
Front 3 steel mains, studs and line bore (girdle too?)
Clean up deck and heads for mls gasket w/ studs
DIY port and polish heads, intake, and stock headers
My goal is mid 10 capability. I have alot of research to do before I start buying parts, who to buy parts from, and what machine shop to use. I'll see if I can load some pics.
Good news is I can reuse the heads and block. Bad news is I have to buy alot of new parts and machine work. My general plan is as follows:
Forged rotating assembly
.010 pistons
Front 3 steel mains, studs and line bore (girdle too?)
Clean up deck and heads for mls gasket w/ studs
DIY port and polish heads, intake, and stock headers
My goal is mid 10 capability. I have alot of research to do before I start buying parts, who to buy parts from, and what machine shop to use. I'll see if I can load some pics.