Thread: A few questions
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Old 28-01-2021, 01:33 PM   #23
asimplelife
mechanical novice hopeful
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Join Date: Feb 2018
Location: Melbourne
Posts: 509
Default Re: A few questions - 4480 design x2

Quote:
PH 4480 - COMPETITION HEADER
FALCON | EA-EB-ED-EF-EL-AU | XH-AU UTES
FAIRLANE | NA-NC-NF-NL
3.9-4.0 LITRE | Manual & Automatic | TRI-Y Design
P/Steering: Yes
Gasket: DSF 61
Air Con: Yes
Primary Pipe: 1 ⅝" (41mm)
Oxy Sen: Yes
Secondary Pipe: 1 ¾" (44mm)
E.G.R: N/A
Outlet (flanged): 2 ½" (63mm)


...It looks like the design of the 4480s has changed somewhat - they used to use a larger primary, so given the smaller secondary of the 4480s, these may in fact produce better torque down low, which means Krissy is correct.
Pardon the threadmine...but it is exactly what I was looking for...thanks to all
I just had one follow up question if anyone knows.
Given there are (at least) 2 designs of pacemaker comp 4480 going around.
And given that the later one is what I am looking for.
And that I was trying to buy 2nd hand to save some money.
Is there any way I can identify an earlier from a later design?
Apart from a caliper to check those external measurements?



Or is it just going to be safer paying $600 for a new set?
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