It's been several years since there's been any posts on this subject so I decided to start a new thread to discuss it. There are several ways to significantly increase the power and torque of the SOHC V6: supercharging, turbocharging and stroking. All three are fairly expensive modifications and many members would probably comment why bother when it's possible to upgrade from a V6 Explorer to a V8 Explorer for less money. Well one reason is the V8 was not available in the 2 door Explorer and another reason is I have become comfortable with the SOHC V6 in spite of its potential timing chain death rattle. I am approaching the end of what I hope to be a successful supercharger installation and for various reasons I am not interested in a turbocharger installation so I would like to limit this thread to discussing stroking (and possibly boring) the SOHC V6.
Tom Morana Racing offers a 4.3L stroker kit for $2,600 and a 4.3L short block for $4,550 with the short block requiring a $300 core charge. They claim an increase of 30+ hp and 30+ tq with no other modifications. Additional costs would be gaskets, TTY bolts, and probably a custom tune increasing the total cost of the stroker kit to around $3,000. That's about $100/hp which is comparble to other performance enhancements. In spite of the V6 use in the Mustangs I'm not aware of any other commercially available stroker kits.
I wonder if the Morana kit would hold up on a daily driver and if the pistons would provide adequate oil control. It's hard to determine from the photo of the kit components if the oil control ring is far enough above the piston pin for good oil control. I also wonder if the height of the piston is adequate to prevent "rocking" in the cylinder bore. There's no mention of clearance issues between the block and the crankshaft counterweights or rod caps. Maybe no modifications to the block are needed.
I have no experience with stroking an engine. I will appreciate your comments.
Tom Morana Racing offers a 4.3L stroker kit for $2,600 and a 4.3L short block for $4,550 with the short block requiring a $300 core charge. They claim an increase of 30+ hp and 30+ tq with no other modifications. Additional costs would be gaskets, TTY bolts, and probably a custom tune increasing the total cost of the stroker kit to around $3,000. That's about $100/hp which is comparble to other performance enhancements. In spite of the V6 use in the Mustangs I'm not aware of any other commercially available stroker kits.
I wonder if the Morana kit would hold up on a daily driver and if the pistons would provide adequate oil control. It's hard to determine from the photo of the kit components if the oil control ring is far enough above the piston pin for good oil control. I also wonder if the height of the piston is adequate to prevent "rocking" in the cylinder bore. There's no mention of clearance issues between the block and the crankshaft counterweights or rod caps. Maybe no modifications to the block are needed.
I have no experience with stroking an engine. I will appreciate your comments.
try .. maybe
