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chev / Red holden 6 compatablity

Started by _superlowuc_ , Jan 30 2006 10:08 AM

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13 replies to this topic

#1 _superlowuc_

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Posted 30 January 2006 - 10:08 AM

they sorry to keep on asking. what proformance parts are interchangable from chev S/B to holden 186/202
on my other threads I have found out fuel pump roller rockers and valve spring ant thing else you guys know about?

thanks again I am greatful for you input

antony

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#2 _Bomber Watson_

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Posted 30 January 2006 - 07:00 PM

roller rockers arn't interchangeable. myself and rexrob (now racyrabbit i think) tryed this a wile ago and decided its not worth it. they will fit but you have to fit bigger studs...not sure how big my head has 3/8 ones and it needed bigger. 7/16th i think we worked out.

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#3 _CHOPPER_

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Posted 30 January 2006 - 09:36 PM

SBC roller rockers will bolt straight onto all Holden 6 Red heads, except for 173 and 202 heads.

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#4 _Bomber Watson_

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Posted 30 January 2006 - 09:45 PM

fair enough

just saying the ones I TRYED didn't fit onto MY HEAD which is a 149 head with 3/8 studs. to go bigger studs would require takign to much out of the bosses imo. they would be weak.

so, i suppose the only advice i can give is be carefull what you get.

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#5 _CHOPPER_

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Posted 30 January 2006 - 09:55 PM

Just so there is no confusion...

Standard SBC rockers have a 3/8" stud. Just like all Holden 6 heads, except for 173 and 202 heads. YT 5007 is the part number for YT roller rockers.

And as lcboi said, there are 7/16" stud size as well.

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#6 _Bomber Watson_

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Posted 30 January 2006 - 10:05 PM

aha, so i was trying the wrong ones ;p

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#7 _82911_

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Posted 30 January 2006 - 10:26 PM

But all screw in studs weather 3/8 or 7/16 UNF are 7/16UNC on the end that screws into the head....

Cheers Greg..

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#8 _superlowuc_

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Posted 31 January 2006 - 12:45 AM

yeah I bought 3/8 stud and 1.5 ratio roller rocker so I think they will work, I am kind of wondering if GM in the states made an strait 6 engine that was the same as the 186/202 etc anyone know?

thanks again

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#9 _82911_

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Posted 31 January 2006 - 07:31 AM

Blue flame 6 is similar in a lot of ways though much,much bigger...
And very old now.
You will be fine with the parts you bought!

Cheers Greg..

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#10 FastEHHolden

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Location:Central Coast NSW
Joined: 16-November 05

Posted 31 January 2006 - 02:25 PM

lifters fit

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#11 _CHOPPER_

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Posted 31 January 2006 - 10:18 PM

But all screw in studs weather 3/8 or 7/16 UNF are 7/16UNC on the end that screws into the head....

Cheers Greg..

Greg, we were originally talking about the rockers, not the studs.

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#12 _82911_

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Posted 01 February 2006 - 07:19 AM

I know Chop...
I was replying to....

just saying the ones I TRYED didn't fit onto MY HEAD which is a 149 head with 3/8 studs. to go bigger studs would require takign to much out of the bosses imo.