13 replies to this topic

[Pezzali]

Hi,

I've a VNEFI V8 going into my Torana.

2 quick questions if someone can help me, before I spend my money!

1. What is a good carby inlet manifold to use, not going EFI?

2. As motor is Turbo Bolt pattern, and I cannot bolt my M21 gearbox to it, it's been suggested I go to a machine shop and have block redrilled to accept all Aussie bolt pattern. Alternatively I could buy a bell housing from Castlemaine Rod Shop to do the job at more expense. What would you suggest? Have you done either?

Thanks heaps,
Rob

[Shiney005]

I'm not an expert Rob, but I have used the Harrop high rise manifold with good results high in the rev range. If you are looking to have a more street driven car with a cam on the mild side then perhaps an Edelbrock Performer, though I'm not sure if they are made to fit the late heads.

[Bigfella237]

Spend the extra money and get the conversion bellhousing.

 

The two top bolt holes aren't so much the problem but I'm pretty sure the dowel pins also need to be moved, it's not much from memory, only about half a hole, but they are what locates the bellhousing on the motor so if moving them you'd have to make sure everything is still centred on the crankshaft centreline... lots of dicking around.

 

Or alternately, put that money toward a T5 that already has the correct bellhousing!

[bat 53]

g'day rob all 

vsb14 rules state that a injected engine has to stay injected 

and wa abide by this rule 

 

cheers  bat

[UCgazman]

We did a HJ about a year or so ago with a carbed VN 5lt, passed without drama?

[rexy]

Your inlet manifold question needs a bit more info.

Intended use? Cam, compression and head Work?

Does it need to stay under a standard bonnet?


I have had a block pattern changed by Harrop in Melbourne. Excellent work but a long way from WA. I went the other way, Aussie to turbo as most of the big power capable trans are more easily found in turbo pattern. I wouldn’t run an Aussie 4 speed behind a 5 litre of any sort.

[Shiney005]

http://www.gmh-toran...brock-highrise/

[Pezzali]

Thanks everybody.

Mild street car. Manifold must sit under bonnet. Compression 10:1. Crame cam 286 as recommended by A1 Performance.

Cheers.

[dattoman]

Won't be using the Harrop and staying under the bonnet

You need a lower manifold

 

Buy the right bellhousing.... redrilling works... but they may require the engine apart (depends who does it) and as mentioned above.. .its not quite right

And never use an adaptor kit

[koalasprint]

Which ever way you go regarding the drill or bell housing option make sure you measure and "clock" the bell housing. My Aussie/Trimatic block had been re-drilled for Turbo/Chev pattern. I used a CRS bell housing that suited both patterns. Using the drilled Chev dowels put my bell housing 17 thou off center. Maximum allowable for the gearbox is 5 thou. I unscrewed the Chev dowels and installed dowels into the Trimatic holes and found it to be 7 thou off center. So then i used offset dowels to got it to less than 1 thou.

 

Youtube has a few good videos on how to clock your bell housing.

 

+1 to get the correct bell housing.

[Lima31]

The Torque Power High Rise dual plane with a drop base filter should fit, apparently it definitely fits with a billet throttle body.

Edited by Lima31, 04 April 2018 - 11:16 AM.

[Redslur]

Be a very close fit I tell you.  I had that exact set up and my air cleaner came out the bonnet.  I sat the drop base one one it and it was very close. Didn't shut the bonnet entirely for the fear of doing damage to it.

[rexy]

Redline hi winder and COME single plane both fit under a standard bonnet in LH or LX from personal experience.

[Cook]

I'm no expert but given it's for a mild street car what about a dual plane like the Harrop or as others have suggested in other threads, the Torque Power.  I can't say personally but I believe both should fit under the hood. Cheers Ron