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silly question guys, I've been considering manufacturing a run of fabricated turbo manifolds to suit the humble slant, Have been working on a design that not only looks relatively factory, but will have no flow drawbacks or crack issues. Out of curiosity, how many here would be interested in a...

love your work, have you found an advantage in leaving a square edge on the back of the intake guide? or is this a 'step one' flow figure

congrats on some brilliant threads! i've been thoroughly enjoying the findings. I'm trying to shoot you a pm with some snaps of a project we have on the go, hoping for an expert opinion but your inbox seems to be full up. thanks in advance, Dan.

Lol

Great link, thanks!

The Class the car is being built around is replicating racing in Australia between 1965 and 1972, cars that have proof the make and model raced in the period are ellidgeable, most items that are free (carbs etc) had to have been available in this era. The vehicle in question is a 1967 a body 4...

Cam, induction and exhaust are free as long as induction type was available before 1972 here, Head performance can be improved by removal of metal, If I've missed anything, it should be in my other thread below; http://www.forabodiesonly.com/mopar/showthread.php?t=205294

Car is around 1300kg (2866 lb) and going down historic road rally car working within a rather restrictive class, 273ci plus whatever bore is required , around 880cfm carburession (slightly more metered than the average holley) 10.5 comp. limited to a torqueflite (but that's not all bad) aiming...

That's kind of my aim, within class rules

not allowed, have to run pre 72 components

yes, that's the one it's on a set of 2658920 273/318 heads (66-67) which suprises me a bit, i wasn't expecting to see one in a 60's head were there earlier heads that did not incorporate it I should be keeping an eye out for? cheers,

What have you guys used on a standard cast head to blank the egr port? I'm just thinking a 2 part metal or hard silicone based compound but thought I'd throw it out there and see if anyone had a tried and true trick. Thanks in advance.

Has anyone here done much research into optimum air speed for carburetor engines? I'm looking into a happy compromise between open ports and air speed on a smallblock I'm planning a rev range between 4000 and 7000 rpm. For reference, each cylinder running around 35 cubes swept volume would...

does anyone here have average chamber cc of early and late 273 on hand? 340/360 would be handy as well if not too much trouble Is there a tell tale mark on the la heads to ue as a reference to find how much has allready been decked off them in the past? thanks in advance,

silly question, has anyone weighed the steel crank vs the cast iron one?

ooh good tip, thanks! bore can go up maximum .060" stroke must remain the same

Great feedback guys! And waggin, I will defiantly get back to you soon. Am picking up another 273 and driveline on the weekend to get a slow start on the project, until them I have a 273 car we can run in a lesser event to set sort geometry while we set up the actual body (would hate to ruin an...

yes, have read and saved the oiling mod thread, a great read. by free, you are allowed to manufacture manifolds, and can run anything that was available in the period, it's not uncommon to see vehicles running tripple and quad weber intake setups like the one below, (belongs to the barracuda...

Some good replies here chaps, thanks for the effort. To try and clarify the rules a bit; I have to use factory cast heads (but in my interpretation, j or x heads are still factory with a trim around the top of the bore??) larger valves can be incorporated. Their wording, 'performance can...

Have been looking into a historic circuit race class down here in aus, considering running a 1967 Valiant, the class is limited to standard components with the exception of consumables (pistons, rings bearings etc..) cams, intake and exhaust are free as long as it was available before 1972...

in more ways than one :) Targa High Country 2011 - Day Two - YouTube

716lb (324 kg) or around the same weight as a 426 (720lb) hell, it's just sitting here, and these things arent done for practicality are they?

sorry chaps, is an aussie ap6 ute (1967) similar dimentions to the barracuda and valiant of the same era in the states

potential candidate??

I'm just fishing for ideas here, with this as a starting point, what would you build? there was a bit of a thread on this from memory quite a while back but the original plan went into something else, so i'm starting again, what would you do? thank's in avdvance for your input, Dan.

BWAHAHAHAHAHA don't freakin degrade my place of residance by mentioning the neighbouring w word . . will be playing with it again this weekend, feel free to head up mate..

just thought you six enthusiasts might be interested in this little number, allready in the states, sounds like it's a torqflite block too http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=220817583041&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en

slowly but surely

she's 3mm thick short cast bends, and 40mm nb mild. welding was done in three stages to avoid it pulling too much, the collector was fabbed in one piece, the two banks (front three and rear three) then a single joining weld on each runner half way down, running a straight edge along it, it's...

had a little more progress today till i ran out of bends, everything transitions nicely with no sharp bends, have purchased the remaining bends required to complete manifold tomorrow . . no, later today now and am hoping to have it post heated and decked by the weekend for fit up if...