Is this a possible combination? From what i understand they are probably one of the best heads out there. Anyone using them?

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89 Formula 5.7L
ZZ3 with some good mods

 

Those heads will bolt up with no problems to the block. Your intake will be another story, Fastburn heads are Vortec style.

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Rob
'86 TA 305 TPI
Gutted MAF, Ported Plenum
TB Bypass, Home made Cold Air Intake,
Edelbrock T.E.S.

 

So ur saying they can't be used with tpi systems?

 

there is enough room to port an edelbrock base to match the higher ports of the fastburn heads however you will have to drill new holes for the bolt pattern to match

 

Ahh i see now i know why nobody is running that setup. Thanks man

 

Holley is supposed to have a EFI intake for Vortec type heads: L31(Vortec 350), L30 (Vortec 305), Fast Burns, and Edelbrock E-tecs. I put the PN into www.summitracing.com and it came out $435.69 for the bare intake.

http://www.holley.com/HiOctn/ProdLin.../9901-110.html


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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

Uhm... Fast Burn heads have both bolt patterns cast into them. They will bolt up. However the intake port shape is different, like was discussed above.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

Yeah, thats a shame,i really wanted to see if i could use them with my tpi setup. Guess i'm gonna just port my zz3 heads.

 

um...can't you match the ports??

 

So if i port the edelbrock tpi base to fit the fast burns' different port size it will bolt up no problem. Would that be a hard job for a machine shop to match the port size?

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89 Formula 5.7L
ZZ3 with some good mods

 

The tops of the runners extend beyond the tpi intake casting.

This would aluminum fill welding the intake and seriously grinding the ports upward. It could be done, but for a machine shop... Expect to pay alot!