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Discussion Starter #1
looking for some more info on Fords XE/SK factory race 69-70-71 cast alum/iron 4V/TA Boss heads.

with the port floors being changed/raised about 1/4" on the 4V TransAm race heads over the production 4V Boss street heads anyone here know the differences, how much the short turn was changed/raised also?,

in these pics i cant 100% tell how much the short turn is also laid back...










apparently there were a few different filled/raised intake port floor versions of Fords Boss/TransAm 4V race heads cast in 70-71 also







if anyone here has anymore info on the > SK/XE 4V Boss/TransAm < raised port floor ta race heads,
particularly about the short turn differences please post it up



 

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Discussion Starter #2
sure looks like Ford was messing around Alot with there pre-production XE 4V boss head castings from 67 to 71 ...

> Ford XE 351Clevor Head <
[/IMG]

many also dont know Ford Indy originaly designed removable/changeable intake port inserts in 69-70 for the 4V Boss head design for TransAm racing way before anyone else ever did ...

> Edd Stevens - Bud Moore Engine specialist <




i understand the PME port filler design came from Fords original Indy/4V Boss/TransAm insert design ...

> PriceMotorsportEngineering <



looks like the high port exh mod was used on SK/XE 4V heads also



:salute:
 

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