351W Stroker Build
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Cross-Country
Joined: Jan 2020
Posts: 92
Likes: 13
Okay, another question…
I have access to two 351w blocks. One has no overbore, the other is already at .030” over and suffered a head gasket failure. I am struggling very much with boring a perfectly good block that barely needs a hone but all the stroker kits I can find have overbore pistons. Am I better off trying to mimic a lot and purchase everything separately to retain the factory bore OR am I better committing to boring out the 351 .030”. I’d much rather find a way to not overbore the factory block even if that means I cough up a few cubic inches simply to retain longevity. Or am I looking at this wrong?
I have access to two 351w blocks. One has no overbore, the other is already at .030” over and suffered a head gasket failure. I am struggling very much with boring a perfectly good block that barely needs a hone but all the stroker kits I can find have overbore pistons. Am I better off trying to mimic a lot and purchase everything separately to retain the factory bore OR am I better committing to boring out the 351 .030”. I’d much rather find a way to not overbore the factory block even if that means I cough up a few cubic inches simply to retain longevity. Or am I looking at this wrong?
Mountain Pass
Joined: Sep 2020
Posts: 249
Likes: 19
From: Mid Michigan
Okay, another question…
I have access to two 351w blocks. One has no overbore, the other is already at .030” over and suffered a head gasket failure. I am struggling very much with boring a perfectly good block that barely needs a hone but all the stroker kits I can find have overbore pistons. Am I better off trying to mimic a lot and purchase everything separately to retain the factory bore OR am I better committing to boring out the 351 .030”. I’d much rather find a way to not overbore the factory block even if that means I cough up a few cubic inches simply to retain longevity. Or am I looking at this wrong?
I have access to two 351w blocks. One has no overbore, the other is already at .030” over and suffered a head gasket failure. I am struggling very much with boring a perfectly good block that barely needs a hone but all the stroker kits I can find have overbore pistons. Am I better off trying to mimic a lot and purchase everything separately to retain the factory bore OR am I better committing to boring out the 351 .030”. I’d much rather find a way to not overbore the factory block even if that means I cough up a few cubic inches simply to retain longevity. Or am I looking at this wrong?
1. Is this a roller cam block?? If Yes. Before buying anything knock your cam bearings out and look at #2 & #4 cam bores where the spider trey bolt down for cracks. See link..
https://www.corral.net/threads/must-...-guys.1352369/
2. Did you check your stock bore with a bore gauge to make sure the cylinder walls are straight top to bottom?? If so by all means get a standard bore piston
3. Are you building this engine at home or are you having it built?? If you are building it yourself and don't build engines much I would suggest a $20 subscription per month to SBF building.com. You can subscribe through 351 Stroker Kits and can cancel at any time. There is a ton of valuable video data on his site and IMO the one video on 351 stroker crankshafts is worth the $20 for a month.
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