VK Commodore Wagon With Weber 34

My 1985 Holden VK Commodore Wagon. Factory 3.23 LSD, Factory 4-speed torquemaster. Running a HQ 202 Red Block at 40thou oversize, with ACL Duralite HQ Racing High Compression Pistons. Decked block for zero height clearance. Running a rather large custom cam, Commodore sump, 12-port VH Commodore 2.8/173 Closed Chamber head for high compression and lotsa low-down torque with good torque curve. Had just machined valve stem guide seats for positive viton valve stem seals "Much Much better than factory ones! ;)", VH Commodore type HEI Ignition System "Thrown away the EST! lol", Pacemaker 12-port tri-y extractors. For carbie, I'm using a hard to find xe f*rd falcon 3.3L weber 34 Twin barrel carbie "miles ahead of factory varajet II" that runs almost no anti-pollution crap that'd just bog it down.

[@eazyrider6122]

Great job mate. Sounds great. Thats a loppy cam alright, I like the belt pully system you made as well.

[@reapermansoldholdensixmech8675]

Thanks mate! Man that engine pulled incredibly well for awhile. Silly me for not running it in carefully before giving it maybe a little too much hell. Needless to say, I'd busted a piston ring in the process and got quite some excessive blow by. I'd since switched motors to a 3.3 black and also installed a new yella terra alloy head along with a set of triple 2" SU carbies. It's running quite nicely and I'm now being a bit more reserved with the old girl. That weber carbie was running quite well and I've also since picked up a couple more to re-jet and play around with over the upcoming summer if I get the chance. Also have 3-4 more holden sixes I'm looking to slap together over that time.

[@reapermansoldholdensixmech8675]

Thanks kindly. it has done it's job well. I still use this old wagon on a regular basis.

[@danmac244]

I ran the same carby for yrs on my warm 202, was awesome on fuel on the highway, around town wasnt to bad either

[@reapermansoldholdensixmech8675]

I'm fond of it that's for sure. I've since changed over to triple 2" su carbies, but I'm not 100% sold on the redline triple su manifold damn near touching the extractors. I'm actually going to go back to the weber 34, but will be running on an aussiespeed 12 port manifold which I've now got on the way. The weber 34 was running very well.

[@jalopyjalopy9489]

Hey mate, thanks for the share 👍 Sounds like a nice strong motor, the 12 ports are great for torque and especially with the standard manifold to with the even runner lengths 👌 nice combo. Would you mind to share your cam specs?

[@reapermansoldholdensixmech8675]

It is a real beauty, and I am still using this as my daily. The cam is an unknown that I pulled out of a worked red motor sometime ago. I had done some measurements awhile ago with a set of vernier callipers, and worked out the lobes are giving around 420thou lift at their peaks. So, somewhat of a nice mild cam. I tried to find what cam manufacturer made this, and a lot of old hands said it was an old speco blueprint cam of some description. The long duration gives some lope. I had changed the weber 34adm over to a weber 38 dgms. Is a much better carburetor yet again.

[@jalopyjalopy9489]

@@reapermansoldholdensixmech8675 awesome thanks for the reply, this is a very similar set-up I'm wanting to build myself for my hr. I'll be chasing torque and throttle response. 😁👍🍻

[@ForIndigenousRightsTas]

@@jalopyjalopy9489 I've done quite a few over the years, a high torque cam is what you'll be wanting, high compression pistons and if you can get one, get a high compression/closed port head from a 2.8 blue vc/vh commodore motor. I, right now, am building another one just like this and will be experimenting with an EFI setup. I've got most of the bits now after scrounging around the last few weeks, and have a nice block and crank to work with. I've got a 3.3 vb commie red block at 20 thou, and using a vk commodore counterweighted crank. waiting on 20thou flat top pistons and molly rings. I'm looking forward to see what it does. Also, I had gone from a weber 34adm to a weber 38dgms. The engine runs better still.

[@jalopyjalopy9489]

@@ForIndigenousRightsTas yeah cheers mate, that's exactly what I'm chasing at the moment is a 12 port high comp head and yeah a torque cam with low duration and high lift. Thinking to go around 220 to 230 @50 with as much lift as I can get with that duration, 450 to 480 lift roughly.. Your motor sounds nice and tuff, are you building it yourself? You'll have to keep us posted with ya build when you take her out for a spin. Good luck with it mate 👍👌

[@RussellBooth1977]

I think that the 3.36:1 diff ratio was standard in the VK Commodores but the 3.23:1 diff ratio was an option !

[@reapermansoldholdensixmech8675]

Could be mate. I haven't looked into it though. The old girl used to sit at a fair warm idle travelling along the highway at 110kph. I've since swapped out the 14" mags for 15" vx ones and had also installed a factory 5 speed gearbox. I've got a spare just incase that one decides to die at any stage.

[@christophercullen1236]

All you had to do was take the baffle out of the standard press steel rocker cover and problem solved !

[@ForIndigenousRightsTas]

First thing I investigated. Won't fit or hold in there without some work,.