78pinto said:
Good idea! I took it out to the local cruise last night, my god....the power!
No replacement for displacement.
Coast Performance has a good selection of parts for strokers. I was looking at the cast steel 4.17"(!!!) stroke piece. I want to bore the block to the "safe" limit, which I assume is .060". (I lie, I actually want to bore that block until it's almost see-through, but I have to control such urges)
A 351W with 4.060" bore x 4.17" stroke = 432 cubic inches. That's a lot of freeking twist right there. A hundred more cubes than my current small block, in a package which looks the same to the untrained eye. You can go much larger with the use of a Dart Iron Eagle block, which can be bored to 4.185", giving you a 459 cubic inch monster small block. A 460 in disguise. But I doubt I'll have the free cash floating around to invest in those blocks, and anyway, my TFS track-heat heads would be way hard-pressed giving that thing enough air at even 5000 rpm. Would also need some serious heads, like those R series, which leads to the need for huge 2" headers..
Anyway, my main concern is the rod/stroke ratio. I was looking at 400M rods, and they're 6.58" long, (the stock 351W has a 5.95")same journals as the 351W, and would give the stroker a decent(but not great) ratio. I'm just wondering if using a forged piston with the pin located way up into the oil ring groove would make enough room for the extra stroke AND the long rods. I might have to go with a smaller stroke, because I'd rather have the longer rods than the extra stroke and the short rods.
I have to get my hands dirty and measure and test stuff on the 351W motor and the 400M parts I have laying around.
I'm going for a milder, more street mannered motor with lots more torque and similar hp at a much lower rpm as my current ill-mannered slobbering 332" which shakes the mirrors so bad I can't see anything in them at idle.
