Home›Forums›Technical – General›Engine›304 Intake Manifold Swap
This topic contains 160 replies, has 10 voices, and was last updated by Immortality 8 years, 1 month ago.
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July 3, 2016 at 6:40 pm #18102
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Hi Guys,
Just picked up a 2nd had Harrop Dual Plane intake manifold, It’s an ex NZV8 tourer manifold so it isn’t drilled to suit injectors but it has been drilled for a rear coolant cross-over.
I’ll get an K&N extreme top 14×3 drop base air cleaner, Aeroflow thermostat housing and Edelbrock 1000cfm TB.
Is there anything else I will need to complete the conversion?
- This topic was modified 8 years, 4 months ago by Immortality. Reason: add
July 3, 2016 at 7:32 pm #18105The only thing I can think of is a throttle linkage and maybe brackets to suit, my only question is will it fit under the bonnet? Coz I’m thinking about doing the same thing with my ss
July 3, 2016 at 8:00 pm #18106
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Should fit, others have fitted TP Dual plane manifolds with drop base filters and they fitted ok and the Harrop is slightly lower than the TP (about 10mm).
I have a spare bonnet here so I will cut a hole in that one and run a raised filter base for the summer for a bit of fun.
July 3, 2016 at 8:47 pm #18108It should fit
manifold
throttle cable
Ports for the 2 factory sensors. ECU, dash + the loop to the water pump nipple
extensions for the rails.
July 4, 2016 at 1:53 am #18117This is how mine was plumbed up when I got it second hand. I got a lokar throttle bracket too.
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ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Thanks guys.
Extensions for the fuel rails I’ll machine up at work. I might drill/tap into the back of the #6 runner for the MAT sensor, then it’s fairly much hidden and close to the original position so I won’t need to alter the wiring loom for that section.
I’ll check out that Lokar throttle cable bracket too. I was thinking about changing over to the V6 throttle cable as it has a different fitting which might be easier to adapt.
July 4, 2016 at 7:58 am #18120I was wondering about the throttle cable, sensor ports are easy just drill and tap, glad to hear it should fit under the bonnet coz I want to do this myself soon enough, keep us posted
My only other question is what’s the best option to get some cold air to this set up without cutting the bonnet obviously
July 4, 2016 at 8:26 am #18121
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535I was thinking along these lines
- This reply was modified 8 years, 4 months ago by Immortality.
July 4, 2016 at 8:52 am #18123that’s probably the best way to go isn’t it, any idea where you can buy something like this? At worst it wouldn’t take much to fold up and fabricate a custom sheet metal one but I’d rather be lazy and just buy something if possible
July 4, 2016 at 9:12 am #18124Put the MAT sensor in the runner. Don’t listen to anyone who tells you otherwise. It caused havoc in mine when it was in the carby base.
I made my own air tray. The difference was huge.
July 4, 2016 at 9:25 am #18125
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535that’s probably the best way to go isn’t it, any idea where you can buy something like this? At worst it wouldn’t take much to fold up and fabricate a custom sheet metal one but I’d rather be lazy and just buy something if possible
July 4, 2016 at 9:28 am #18126
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Good looking cold air box there
Yep, that’s why I’m intending to go into runner 6 as close as possible to the original position.
I don’t suppose you remember what model/part number for the top radiator hose?
Put the MAT sensor in the runner. Don’t listen to anyone who tells you otherwise. It caused havoc in mine when it was in the carby base. I made my own air tray. The difference was huge.
July 4, 2016 at 12:01 pm #18131Believe it was a bottom VNv6 hose cut down. I had a swivel t/stat housing tho.
July 4, 2016 at 4:22 pm #18139That engine bay shot has given me a few ideas cava, I like the overflow/catch can setup you have there I think I’m gonna have to do something similar.
thanks for the link immortality, it’ll be a while till I get to swap my manifold but at least I know what I need and where to get the bits I want
July 4, 2016 at 4:32 pm #18140
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Yeah, right now I want to get it on and running. The cosmetic stuff can come later as time allows.
Working on getting a new job so I kinda need a running car fairly soonish……
July 4, 2016 at 4:32 pm #18141They do call me a pioneer
July 4, 2016 at 4:38 pm #18143
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535That engine bay shot has given me a few ideas cava, I like the overflow/catch can setup you have there I think I’m gonna have to do something similar. thanks for the link immortality, it’ll be a while till I get to swap my manifold but at least I know what I need and where to get the bits I want
With the airbox gone from the factory position it does open up a lot of opportunities to utilise that space
July 4, 2016 at 5:00 pm #18146
VRSenator065Participant- Adelaide SA
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Posts: 5 777I’m digging the bonnet mounted work light you have there too Mr Pioneer. Is it eBay?
July 4, 2016 at 5:09 pm #18147Repco.
But they don’t sell to you regular people.
July 4, 2016 at 5:12 pm #18149
VRSenator065Participant- Adelaide SA
- VR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project)
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Posts: 5 777Well lets say hypothetically the did sell to mere mortals like me, can “Cava the Oracle” please advise if it damages the bonnet paint at all, or if you are happy with it?
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