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Topic: 2 or 4 bolt (Read 257 times)
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dd69a
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73 400 2 or 4 bolt main?
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JL67gt
Jr. Member
 Offline
Posts: 96
BigBlockDart.Com
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I thout all B&RBs were 2 bolts do you meen you want to convert to 4 bolt what do you want out of the 400
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speedymopars
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383-440 wedges are all 2 bolt mains - due to the design, a 2 bolt main Mopar is stronger than brand X's 4 bolt mains.
The hemi's and most aftermarket are 2 bolt with additional cross bolts making it a 4 or 6 bolt main.
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70 Duster - Keith Black 526, 2 x 830 annulars/tunnel ram, big solid roller, 727 ProTrans, Strange 4.30s
77 440 Dodge van 12.96 @ 108 - 4800 lbs of love with a 2.72 peg leg and 1800 stall
74 cheyenne 452 stroker, 2x450's on a tunnel ram, 21 foot, Berkeley jet, place diverter
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dd69a
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looking at 512 ci stroker 600 plus horse its a mopar itll be fine thanx for the info
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PureGTS
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There are folks tht sell main caps to convert them into 4 bolt mains but they are like the Hemi not the typical SB and required alot of machine work to install.
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Knowldge is power, power is speed, speed is good, low E.T. is better
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bigtimeauto
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worry less about the main bolts and more about the cylinder wall thickness. Get it sonic checked before you do anything.
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speedymopars
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Throw a set of ARP studs in there, and the block will die before the "wimpy" 2 bolt mains will.
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70 Duster - Keith Black 526, 2 x 830 annulars/tunnel ram, big solid roller, 727 ProTrans, Strange 4.30s
77 440 Dodge van 12.96 @ 108 - 4800 lbs of love with a 2.72 peg leg and 1800 stall
74 cheyenne 452 stroker, 2x450's on a tunnel ram, 21 foot, Berkeley jet, place diverter
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68_Val_Sedan
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Throw a set of ARP studs in there, and the block will die before the "wimpy" 2 bolt mains will.
 I've never had a problem with a 2 bolt block with studs in it ... |
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67 dart 270 resto mod in progress ...
68 chrysler 300 wish it was my daily driver ...
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