Luke13 56 Posted February 25, 2020 Hi all I am getting parts together for putting a four barrel on my xe I have a four barrel Aussie speed manifold and a quick fuel 450 carb what size air filter will fit under the bonnet ThanksĀ Share this post Link to post Share on other sites
bear351c 10,270 Posted February 25, 2020 I'm guessing it's a 6 cylinder XE.? 1 Luke13 reacted to this Share this post Link to post Share on other sites
gerg 10,871 Posted February 25, 2020 You may need to shut the bonnet and attempt to measure the clearance from underneath. That's what I had to do when I fitted my oval cobra one to my V8.Many on here will advise running a spacer under the carby, which throws up more challenges fitting a decent size air cleaner.@CHESTNUTXE just offloaded a 250 crossy out of his XF so should know what fits, etc. He ended up cutting a hole in his bonnet to fit the air cleaner he had. I would use a drop base air cleaner if possible, that allows a taller element for the same height to the top. A lot of factory V8 air cleaners are like this. Maybe try one of those? All US 4 barrel carbies, no matter what brand, will use the same diameter SAE carb flange so will physically fit. Rocker cover and shock tower clearance will of course be a factor. I don't know how good your fab skills are, but you could even cut and shut a factory Weber oval air cleaner to fit a Holley flange. Yet another option.A long oval air cleaner might suit your needs as it will clear the rocker cover and shock tower more easily.The rule of thumb is use the biggest air cleaner you can fit. There really is no downside to "bigger is better" in this case. I cringe when I see a tough engine with a big carby strangled by a pissy chrome air filter that would be small on a 4 cyl.Sent from my CPH1903 using Tapatalk 1 Luke13 reacted to this Share this post Link to post Share on other sites
Luke13 56 Posted February 25, 2020 Sorry guys it's a crossflow Share this post Link to post Share on other sites
Luke13 56 Posted February 25, 2020 27 minutes ago, bear351c said: I'm guessing it's a 6 cylinder XE.? Yea mate sorry Share this post Link to post Share on other sites
CHESTNUTXE 7,310 Posted February 25, 2020 you can forget about fitting it underĀ the bonnet ,unless dropping the carby straight onto the manifold with a small 2 inch filter,or trim bonnet support framework might fit 1/2 inch spacer. 1 gerg reacted to this Share this post Link to post Share on other sites
Luke13 56 Posted February 25, 2020 What about diameter issues would 9 x 2Ā or 12 x 2 work I only plan of revving it to around 5000 so I might get away with out the spacerĀ Share this post Link to post Share on other sites
slydog 7,873 Posted February 25, 2020 9" K@N or Aeroflow filter top and base sealed with pinch weld fits under bonnet with a 2" spacer. 2 gerg and Luke13 reacted to this Share this post Link to post Share on other sites
Luke13 56 Posted February 25, 2020 Awesome thanks mateĀ Share this post Link to post Share on other sites
slydog 7,873 Posted February 26, 2020 A traditional filter is to tall but a flow thru filter top is the go. Share this post Link to post Share on other sites
Luke13 56 Posted February 26, 2020 Thanks mate that's what I was planning to getĀ Share this post Link to post Share on other sites
Fingers 463 Posted May 16, 2020 I had a similar issue with air cleaner clearance on a slant 6 Valiant. One of the things I did to gain a bit of clearance was to shorten the passenger side engine mount bracket by 3/4", which gained more than an inch at the carburettor, I also raised the back of the bonnet about 3/4". 1 gerg reacted to this Share this post Link to post Share on other sites