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what is your holden 6 combo

Started by _rb3torana_ , Jan 13 2010 06:43 PM

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109 replies to this topic

#101 warrenm

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Location:Central West NSW
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Posted 21 November 2014 - 10:26 PM

Dave,can you tell me more about your 1.6 Summit roller rockers please? part no or application? bolt on or mods,?

thanks mervx

Small block Chev rockers. :spoton:

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#102 _mervx_

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Posted 22 November 2014 - 05:15 PM

Thanks Warrenm.Its that all it takes?Is the geometery still correct? I have the head and engine on the bench so I fiddle with pushrod lengths etc and I can check the sweep of the rocker. So its all just bolt on small block chevy roller rockers??

thanks ,mervx

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#103 warrenm

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Posted 22 November 2014 - 10:59 PM

Just bolt them on. Check it all to make sure, but I think you'll find that 186 or 202 push rods will be fine, depending on your setup.

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#104 Dave6179

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Posted 23 November 2014 - 08:10 AM

Only mod needed was having to make my rocker cover 1/2 inch taller. Already had ARP screw in studs fitted, and I was using the long pushrods... with the old head, now short rods with the new head.

http://www.summitrac...g6906/overview/

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#105 _mervx_

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Posted 23 November 2014 - 09:47 AM

Many thanks for the info guys,just checked the above link to summit and a bit over $300 delivered. Too easy.

I'm not chasing poofteenths but as I wanted roller rockers ,why not get a bit more lift "for free". I got plenty of pushrods in stock,anyway.Grafting 2 rocker covers,easy peasy.

That's a better deal than some yucky brand ones that pop up on ebay,haha.

thanks guys,mervx

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#106 _mervx_

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Posted 23 November 2014 - 09:51 AM

I got one more query.I have HT817 lifters with my pile of parts but I think they should be HT969. Is one for 186 and one for 202?

Its been a few years since I got these parts together!!

mervx

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#107 _duggan208_

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Posted 25 November 2014 - 12:53 AM

Engine

186 block, blue counterweighted crank, polished and cross drilled, going to try a tear drop shaped counterweigths. Shot peined Starfire rods. ACL race pistons, bearings etc. Arp bolts. Going to fit a main girdle, crank scraper, external oil pick up and grout next rebuild, very soon. Heavy B&M balancer (4.2 Kg), Locked custom made dizzie to suit computer.

Induction

3x2 EFI Hardware throttle bodies, 50, 48, 45mm. Holley blue lift pump, 055 Bosch main pump, 390 cc Delphi injectors and a whole heap of other stuff, cost me a bloody fortune. Wolf V500 ECU.

Exhaust

Modified H&M headers, 3 inch single system.

Cam

Wayne Green solid (would love a roller with roller bearings) IN 44, 72 EX 78, 41, Dur @50, IN 257, EX 260, Lift ( I have no idea what my rocker ratio is) so at 1.5 In 529, Ex 513.

Compression

11.1

Head

Duggan (I believe a series 2 or 2nd design) Nice piece of alloy this is, although it can be a real pain in the arse. Has just about everything you could want.

Driveline

custom made steel flywheel, press fit, 3/8 ARP bolts (4.8 Kgs), probadly too light, AP clutch (4.8 Kgs), M-21 and I love my inline shifter. 3.55 true track 9 inch ford diff.

1/4 time,

Nothing yet, have to rebuild due to low oil pressure issues

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#108 _duggan208_

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Posted 27 November 2014 - 11:54 PM

My combo at the present, rebuild coming next year and few more changes.

Engine

186 block, blue counterweighted crank, polished and cross drilled, shotpeined starfire rods, ACL race series pistons, bearings etc, ARP bolts, big sump, windage tray, JP oil pump, straight cut gears, custom made dizzie to suit ECU, B&M steel balancer (4.2 Kg), Davies Craig electric water pump.

Induction

3x2 EFI Hardware throttle bodies, 50,48,45mm, bloody night mare to set these up, Delphie injectors, Holley blue lift pump, Bosch 055 main pump, Wolf v500 ECU.

Cam

Wayne Green solid, In 44-72, Ex 78-41, Duration 50@ In 257, Ex 260, lift, not sure what my rocker ratio is so at 1.5, In 529,

Ex 513,

Compression

11.1

Head

Series 2 Duggan, it has just about every thing you could want in a holden 6 head.

no mechanical steriods

Driveline

Custom press fit steel flywheel (4.8 Kg) ARP bolts, probadly too light, AP clutch (4.8 Kg), M-21, 3.55 truetrack Ford 9 inch.

No 1/4 time, unfortunatly due to low oil pressure, hense the dredded rebuild. The dyno guy would only rev it to 5 grand, a previous dyno tune had it making power up to 7 grand, so heaps of potential.

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#109 warrenm

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Posted 28 November 2014 - 05:20 AM

My combo at the present, rebuild coming next year and few more changes.

Engine

186 block, blue counterweighted crank, polished and cross drilled, shotpeined starfire rods, ACL race series pistons, bearings etc, ARP bolts, big sump, windage tray, JP oil pump, straight cut gears, custom made dizzie to suit ECU, B&M steel balancer (4.2 Kg), Davies Craig electric water pump.

Induction

3x2 EFI Hardware throttle bodies, 50,48,45mm, bloody night mare to set these up, Delphie injectors, Holley blue lift pump, Bosch 055 main pump, Wolf v500 ECU.

Cam

Wayne Green solid, In 44-72, Ex 78-41, Duration 50@ In 257, Ex 260, lift, not sure what my rocker ratio is so at 1.5, In 529,

Ex 513,

Compression

11.1

Head

Series 2 Duggan, it has just about every thing you could want in a holden 6 head.

no mechanical steriods

Driveline

Custom press fit steel flywheel (4.8 Kg) ARP bolts, probadly too light, AP clutch (4.8 Kg), M-21, 3.55 truetrack Ford 9 inch.

No 1/4 time, unfortunatly due to low oil pressure, hense the dredded rebuild. The dyno guy would only rev it to 5 grand, a previous dyno tune had it making power up to 7 grand, so heaps of potential.