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Slow250XC

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Slow250XC last won the day on February 9

Slow250XC had the most liked content!

About Slow250XC

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    New Zealand

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  1. Slow250XC

    Valve spring tool

    I have not used compressed air in years for doing stem seals. Length of thin poly rope fed through the sparkplug hole. Wind it up to tdc and your sorted. The wind down style clamp above works well but buy a good one as tough springs can open the fingers. Sent from my SM-J330G using Tapatalk
  2. Slow250XC

    Replacement head for iron crossy

    So...avgas ftw? Haha Seriously though thanks for the info, not above doing whatever work is necessary. But i am going to try the adaptor and 4barrel route first. End goal is still efi itb's. But a lotto win or other windfall will be in order for that to happen. Sent from my SM-J330G using Tapatalk
  3. Slow250XC

    Replacement head for iron crossy

    Good info as per usual. Adapter is the centered type. Sent from my SM-J330G using Tapatalk
  4. Slow250XC

    Replacement head for iron crossy

    Opinions. Spacer on the manifold side of the adapter to create more airspeed (venturi effect), or carb side? Ordering both spacers and adapter from summit after the wedding. Will mix and match to see what works best. Sent from my SM-J330G using Tapatalk
  5. Slow250XC

    Replacement head for iron crossy

    Thought about running an adaptor, have had one a trademe watchlist for months. Just did not think too much about it. Makes sense though and can easily ream out the holes. You guys are awesome as usual!! Sent from my SM-J330G using Tapatalk
  6. Slow250XC

    Replacement head for iron crossy

    Holry sheet batman! Even as a guestimate i would have been happy with 200. Will take it with a grain of salt however lol. I have worked CR as 10.8 but was complete guess as to headgasket thickness, and not quite zero deck height. Main reason to go alloy head is for a decent 4 barrel manifold, however the redline 2barrel one on there at the moment has done the job for a decade. Could get a redline ironhead 4barrel and tidy it up i suppose. 570 street avenger should do the trick until i save for jenvey itbs (unlikely dream haha). Sent from my SM-J330G using Tapatalk
  7. Slow250XC

    Replacement head for iron crossy

    Gerg, i thought i may be pushing as far as freebie apps etc go, i am more curious than serious about the old girls output. Running a 500 Holley at the mo so it is a peashooter in comparison to alot of the machines on here. Sent from my SM-J330G using Tapatalk
  8. Slow250XC

    Replacement head for iron crossy

    Cheers guys, It was one of the threads on here i found that said the D heads were 48ish. My iron is 48cc chambers with 8cc dish pistons so to keep similar CR without bumping it too high i want to find a head around there too. Sent from my SM-J330G using Tapatalk
  9. Slow250XC

    Replacement head for iron crossy

    Distracting myself today i started thinking about the head on the crossie, and the idea of going alloy for better manifold choice. 48cc chambers in trusty ironhead. From what i can tell the nearest alloy head with similar chamber size is the d head at 48-51cc depending on what website i read off. All you guru's out there who know better than me feel free to correct me please, or let me know your ideas. Also does anyone have a link to a calculator to work out hp/torque guestimates? Sent from my SM-J330G using Tapatalk
  10. Slow250XC

    81' XD bonnet not opening

    Still keep a length of packing strap in my lockout kit. With a v notch in it for low posts Sent from my SM-J330G using Tapatalk
  11. Slow250XC

    Holley Sniper EFI

    So did you get it all sorted? Sent from my SM-J330G using Tapatalk
  12. Slow250XC

    Help mechanical fuel pump

    Another user of the facet electric pump. Great little units. As for rebuild kits for glassbowl crossflow pumps.... Sent from my SM-J330G using Tapatalk
  13. Slow250XC

    can anyone id this diff?

    That is what my eyeometer was showing. When looking at my diff and axle spares. Will measure up over xmas. Cheers guys Sent from my SM-J330G using Tapatalk
  14. My single rail is in a 3 speed xb housing. Open up the center hole with some gentle grinding and only needs one hole redrilled. Top rh by memory. Sent from my SM-J330G using Tapatalk
  15. Slow250XC

    can anyone id this diff?

    So in theory i can fit my xc backing plates and drums to an xh housing if i take the calipers off and pop the axles? Apologies for highjack. Sent from my SM-J330G using Tapatalk
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