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School me on 6-bolt heads

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Old Dec 17, 2014 | 10:22 AM
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Default School me on 6-bolt heads
I have a 6-bolt super deck that for now I plan on having my ported oem ls7 heads fitted with some t-washers for 1/2" studs and just run that way leaving me "room to grow" when it comes to power adders when I switch to 6-bolt heads but I don't know much about the different ones
For the most part as far as LS7 style I've seen brodix,rhs(which seem to be on near permanent back order), and all pro. Do all of these run shaft mount rockers? Are there any ls7 style 6-bolt heads that run pedestal? I want the safety of a thicker deck when running nitrous but my cam has a max 650 lift
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Old Dec 17, 2014 | 03:50 PM
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PRC 265/285 are 6 Bolt heads that run on the LS7 pedestal, I have PRC 285's on an ERL dry sleeve bottom end. They also come with springs good to .675 and a thick deck
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Old Dec 17, 2014 | 04:39 PM
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Those do look good, wish they came in a chamber size closer to 60cc so I could run a fat head gasket and still keep compression
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Old Dec 18, 2014 | 06:32 AM
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Can the mast 305's or prc 285's be milled to 60cc? Was going to try and run a 0.075 gasket and want to keep a higher compression
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Old Dec 18, 2014 | 09:30 AM
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Chris Frank has a killer CNC program for the brodix 6 bolt heads...that is what I have on my ERL 454 dry sleeve short block
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Old Dec 18, 2014 | 11:56 AM
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The brodix require shaft mount rockers correct? Was hoping to find some that are pedestal mount so I can re-use some if the parts I already have. Chris already quoted me on some all pro and some brodix. I don't have any experience with shaft mount rockers and this car will see a lot if street time. I know that aluminum rockersares not recommended for street cars and I've heard the steel ones are heavy and that can cause valve problems
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Old Dec 18, 2014 | 10:30 PM
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I am running a set of ls7 rockers with the trunnion upgrade on my Brodix castings...check out the pics, page 21 on my build thread...
https://ls1tech.com/forums/generatio...-build-21.html
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Old Dec 19, 2014 | 04:48 AM
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Alright so now I've seem mast 305 and brodix in 65cc, only ones I've seen able to go to 60cc are still the all pro. They don't make a pedestal mount I missed do they?
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Old Dec 19, 2014 | 01:21 PM
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Alright it's looking like I can get the brodix br7 milled down to 62cc.
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Old Dec 19, 2014 | 02:22 PM
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What kind of compression are you looking to make? What pistons are in your short block?
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Old Dec 19, 2014 | 02:43 PM
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It's the erl nitrous set up, diamond pistons, was looking for something a little under 12:1
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Old Dec 20, 2014 | 12:10 AM
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Are the pistons plus or minus CC? I got 12:1 compression with the erl 454, a 2" bore .051 thick head gasket, and stock chamber heads with -2cc pistons for what its worth
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