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ef xr8 carby/efi head compatibility 

 

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 Post subject: ef xr8 carby/efi head compatibility
Posted: Wed Jul 31, 2013 7:51 pm 
Stock as a Rock
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Age: 37

Posts: 112

Joined: 18th Aug 2005

Location: hobart
TAS, Australia

Quick question, just wondering how similar the early carb 302 Windsor heads are compared to the efi heads on an ef. Just need a quick/cheap fix heads for an efxr8 so not going to bother with gt40 or aftermarket heads, just want it running but want to know when looking for the heads do I need to be careful they are off an efi instead of carb motor.
Cheers.
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 Post subject: Re: ef xr8 carby/efi head compatibility
Posted: Thu Aug 01, 2013 9:26 pm 
EFI Guru
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Age: 52

Posts: 4289

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Generally speaking they'll bolt on but early heads had rail rockers not stamped rockers so there's your first problem. Not till 78 did they switch to rail rockers but the chambers were up around 69cc which will drop your compression. Not to mention the springs likely won't work with the 5.0 roller cam.
E7 heads are pretty common anyway so I'd just look for some of them....no headaches.
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 Post subject: Re: ef xr8 carby/efi head compatibility
Posted: Thu Aug 01, 2013 10:04 pm 
Getting Side Ways
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Age: 29

Posts: 4182

Joined: 30th May 2005

Ride: 1993 EB XR8

Location: BrisVegas
QLD, Australia

I'll have a set of E7's for sale cheap soon. Can ship to Tasmania too!

 

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