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460 4 bolt main caps.
They believed that when you increased the load on the crankshaft you increased the load on the main caps.
Main cap chevy sbc 350 oem 4 bolt replacement billet steel main caps middle 3 caps not yet reviewed.
These aftermarket main caps will strengthen not only factory 2 bolt blocks but also 4 bolts.
Does anyone know the torque specs to use on these.
Pro gram engineering billet steel main bearing caps sb chevy 265 350 350 step bottom angle caps for 2 bolt block when stock dipstick and oil pan usage is required 0 reviews.
Speedmaster pce289 1002 part number.
The side bolts are angled so they pull from the side walls of the block and not the flimsy main web area.
Blocks have 4 bolted on all 5 main caps ultra or premier block all eliminator products blocks except sportsmans are machined for roller cam bearings or 60mm slider bearings svo block topside svo block bottom.
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Unlike the factory caps these not only have more cross sectional strength but the real secret is in the angled side bolts.
Estimated ship date loading 12 11 2020 if ordered today.
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Gm started making the 4 bolt main in the 1970 s because their theory was that as power increases the crankshafts would shoot out the bottom of the engine.
Four bolt main conversion kits are also available for these engines.
Ford 429 460 oem 2 bolt to 4 bolt splayed billet steel main caps middle 3 caps.
06 ford 460 four bolt main caps summit racing before the four bolt main conversion can even begin all main saddle bolt holes.
I have a 460 block that has had 4 bolt main caps on 2 3 and 4 installed.