iroc 350

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Aug 9, 2007 | 02:10 PM

cshabby

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From: Rhode Island

iroc 350

whatsup guys, i was thinking about picking up a 86+ iroc-z with a 350, are those 350's 4 bolt mains? thanks

Aug 9, 2007 | 05:19 PM

TransAmBand1t

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There was no factory 350 in 1986 on the F-Body platform. They were introduced in 1987.

Aug 9, 2007 | 05:34 PM

cshabby

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well 86+, + as in newer.. so yeah, that would include an 87 or anything til 92.. i just used 86 as a random starting point

, so 4 bolt main or no

Aug 9, 2007 | 07:37 PM

92camaroguy

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In a third gen I could be wrong but I'm 90% sure all where 2 bolt mains

Aug 9, 2007 | 11:35 PM

ONEBADASSWS6

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I believe only the truck engines had 4-bolt mains in the 80's and early 90's. As far as I know the cars all had 2 bolt mains, unfortunately.

Aug 10, 2007 | 02:16 AM

ZONES89RS

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IROC was only till 1990 so that would be your limit, 87-90, there were only 4 bolt mains factory in HD trucks 3/4 tons and corvettes, hope this info helps, a 2 bolt will hold 500 HP, ive done it.

Aug 10, 2007 | 10:56 AM

cshabby

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yeah you guys are right, they are 2 bolt mains. i asked a buddy of mines brother who built one up and he said the same thing, not to be afraid of the 2bolt because they still can handle a considerable amount of power