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Old 01-21-2003, 09:22 AM
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Post large journal 327 help

i have a 350 block, i am going to bore it .30 over, and put on vortec head with an edelbrock performer intake manifold, that is made for vortec heads, a fireball camshaft from compcams, you all know how rowdy those are, i am going to make a large journal 327 with a 307 crank, I know your suppose to used 350 piston heads ".30 over if you bore it", but since the stroke is differant, what size of piston rod would you use.
and another qeustion, should i use vortec heads and intake maifold, or go with regular sbc 202's.

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Old 01-21-2003, 10:44 AM
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GEEEee! Judjing from your other post, it sounds like this motor is already built and terrorizing the streets? Be careful, some of these guys can smell B.S. a mile away! Anyway, the Fireball cam is from Crane! And you can build your large journal 327 more than a few different ways. The easiest being with 5.7" rods and 327 pistons. The way that I have done my last engine was, using 5.94" p.m. rods and decking my block .010, I then used pistons designed for a 383 with 5.7" rods. this combination yeilds the same piston height at TDC as the 383 setup. Be careful with your comp. calculations though, these pistons will yeild lower comp. than the 383 because of the shorter stroke. I am using .100 dome pistons with vortec heads for a 10.25--10.5 comp ratio. Of course, you can go with 6.0" rods and custom pistons also.
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Old 01-21-2003, 11:41 AM
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oooopps small journal 327, i wonder what size of rod you need for a small journal, i already have a large journal built, yes, my next project is a SMALL JOURNAL, thinks for helping me catch my mistakes dude.
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Old 01-21-2003, 12:02 PM
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WOW! You mean to say that you have a SMALL JOURNAL 350 block? Or a SMALL JOURNAL 307 crank? Come on brother, the gig is up! If you have these parts, guess what, They ARE 327 parts! Just get you a set of early 5.7" rods and some 327 pistons, you're Good To Go!
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Old 01-21-2003, 12:40 PM
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HELP, would someone please move this to the Engine forum ( or anywhere else they thing it belongs) it is not about interiors!
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Old 01-22-2003, 12:39 PM
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Hey Chevyman! There are lots of members here with plenty of knowledge and free advice to offer! I have noticed that you are all over the boards, posting this and that. Just put some thought into your (serious) questions and you will get sound advice! Just respect the fact that some of these members are professionals and don't want to sift through b.s. before answering questions!
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