4bbl intake for 255 (4.2)
07-31-2008, 08:49 PM
#1
2nd Gear Member
Thread Starter
Join Date: Jul 2008
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Posts: 196
4bbl intake for 255 (4.2)
I have an 81 ghia I am driving around while I am finishing up my 83 gt. It currently has some sort of adapter and an edelbrock 4bbl. I was wondering if anyone made a 4bbl intake for that motor or if a 302 one would work. Not looking for a racecar, but the adapter thing has to go!
07-31-2008, 09:07 PM
#4
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
RE: 4bbl intake for 255 (4.2)
nobody to my knowledge makes peformance parts for it and this is why:
In 1980, an urgent need to meet EPA CAFE standards led to the creation of the 255CID (4.2L) version, essentially a 302 with the cylinder bores downcored to 3.68 in (93.5 mm). Rated power (SAE net) was 115-122 hp (86-91 kW), depending on year and application. Cylinder heads used smaller combustion chambers and smaller valves and the intake ports were ovals whereas the others were rectangular. The only externally visible cue was the use of an open runner intake manifold with a stamped steel lifter valley cover attached to its underside, giving the appearance of previous generation engines, such as the Y-Block and the MEL. It was optional in Fox chassis cars including the Mustang and corporate cousin Mercury Capri, Thunderbird, Fairmont, and standard equipment in the Ford LTD. Poorly received thanks to its dismal performance and mediocre fuel economy, it was dropped after the 1982 model year, and is considered one of the worst modern Ford engines.
In 1980, an urgent need to meet EPA CAFE standards led to the creation of the 255CID (4.2L) version, essentially a 302 with the cylinder bores downcored to 3.68 in (93.5 mm). Rated power (SAE net) was 115-122 hp (86-91 kW), depending on year and application. Cylinder heads used smaller combustion chambers and smaller valves and the intake ports were ovals whereas the others were rectangular. The only externally visible cue was the use of an open runner intake manifold with a stamped steel lifter valley cover attached to its underside, giving the appearance of previous generation engines, such as the Y-Block and the MEL. It was optional in Fox chassis cars including the Mustang and corporate cousin Mercury Capri, Thunderbird, Fairmont, and standard equipment in the Ford LTD. Poorly received thanks to its dismal performance and mediocre fuel economy, it was dropped after the 1982 model year, and is considered one of the worst modern Ford engines.
07-31-2008, 09:09 PM
#5
5th Gear Member
Join Date: Jul 2004
Location: Westminster, MD
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RE: 4bbl intake for 255 (4.2)
ORIGINAL: mjr46
no the 289/302 intakes will not fit the 255
no the 289/302 intakes will not fit the 255
07-31-2008, 09:13 PM
#6
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
RE: 4bbl intake for 255 (4.2)
read my post above zach...the head ports are different shape..oval and not rectangular..do a google search every intake option specifically says ....will not fit 255 v-8
07-31-2008, 09:19 PM
#7
5th Gear Member
Join Date: Jul 2004
Location: Westminster, MD
Posts: 4,343
RE: 4bbl intake for 255 (4.2)
ORIGINAL: mjr46
read my post above zach...the head ports are different shape..oval and not rectangular..do a google search every intake option specifically says ....will not fit 255 v-8
read my post above zach...the head ports are different shape..oval and not rectangular..do a google search every intake option specifically says ....will not fit 255 v-8