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73 440 spec. questions?

Started by b5blue, August 28, 2021, 01:07:13 PM

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b5blue

Any know compression ratio and cam used for a 73 4BBL 440?

Nacho-RT74

Magnum cam if HiPo. If not, the basic cam.
8.2 CR per manuals.

Pretty much the same than the Pre 72 era, but the pistons height AND as far I recall, single timming chain with nylon teeth camshaft gear for a quiter engine.

Of course spreadbore intake for TQ carb
Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html

b5blue


Nacho-RT74

You're welcome!

The single timming chain was ( and this is why I say as far I recall ) either being HiPo engine or not. Diff from earlier years, where HiPo got double timing chain and non HiPo single. I can't recall on my 74 Parts manual catalog a diff timming chain setup being mentioned  between HiPo and Non Hipo, either being 400 or 440. But sure 74 could also get some differences with 73.
Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html

John_Kunkel

The only 440 that had a double-row timing chain was the '70-'72 440 6-Pack. The plastic tooth sprockets started in '73.
Pardon me but my karma just ran over your dogma.