insanity & senselessness
Im rebuilding my 351M with 400 crank, but what about 434 stroker?
pffffft what kind of answer is "good enough" when the question of high performance is on the line here?!?! he doesn't want good enough, or he'd leave it a 351m. he wants OVERKILL.For the street a 400 is probably good enough. Just be sure to get your parts from TMeyer. Once your block is all cleaned up you will know the overbore & you can order pistons, rings & bearings. Do you want to run the closed chamber heads?
I am fairly sure Tim's 434 stroker kit comes with new rods.pffffft what kind of answer is "good enough" when the question of high performance is on the line here?!?! he doesn't want good enough, or he'd leave it a 351m. he wants OVERKILL.
besides, it's a heavy ass bronco, so it's going to be slow no matter what he does, he needs all the engine he can get if he wants it to be faster.
as for the 400 vs. 434, consider rod length, cam choice, and TDC dwell a little as well when you're doing a stroker build. if you're going with stock heads, and the stroker kit uses stock rods, it probably has a horrible rod ratio like <1.5, and very little TDC dwell time which will result in not much breathing due to restrictive stock heads. so it wont make much high rpm power. just somethin' to keep in mind.
The 434 kit contains:
4340 Forged 4.250" crankshaft
Forged H-beam rods, about 6.700" length, ARP 2000 bolts.
Forged Flat top piston
ACL rod and main bearings
Plasma moly ring set
Billet 9-keyway timing set with Torrington bearing
This complete assembly is ready for internal balancing.