Port Plates
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Senior User
Joined: Sep 2002
Posts: 325
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From: mt. shasta california
Port Plates
I was just reading a site that sold port plates and I was wondering if they are all that they make them out to be? What are the advantages and disadvantages?
Senior User
Joined: Jun 2002
Posts: 263
Likes: 1
From: British Columbia
Port Plates
I know the port plates help out with the poopy 351C 4bbl heads by re-shaping the exhuast port, but I don't see the use of them in a 385 series engine. The 385 series heads require a totally different style of head work than the 351C.
Nick from the frozen north
1974 F-250 4X4
soon to be 429
dana 60 front and rear
Nick from the frozen north
1974 F-250 4X4
soon to be 429
dana 60 front and rear
Senior User
Joined: Jun 2002
Posts: 263
Likes: 1
From: British Columbia
Port Plates
hmmm. those port plates look kinda interesting. I think I would like to see some flow and dyno numbers before I fork out cash.
Nick from the frozen north
1974 F-250 4X4
soon to be 429
dana 60 front and rear
Nick from the frozen north
1974 F-250 4X4
soon to be 429
dana 60 front and rear
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Postmaster
Joined: Aug 2001
Posts: 2,882
Likes: 0
From: Nevada
Port Plates
They're generally used in conjunction with full porting on all-out race car heads. Most mudders and drag people who go to the trouble of installing them are rather secretive about publishing flow numbers, but they do get raves from users.
For a street or mild performance engine, I doubt it would be worth the cost and effort. The intended use is to provide enough flow to support very long duration and very high lift cams, not exactly streetable.
For a street or mild performance engine, I doubt it would be worth the cost and effort. The intended use is to provide enough flow to support very long duration and very high lift cams, not exactly streetable.
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