GT-40x Aluminum heads, street-legal?

yelowjaket · 02-06-2003, 11:56 PM

I'm planning on buying a short block and putting on some GT-40X Aluminum "Turbo Swirl" heads. I've heard these aren't street legal. Can anyone tell me this for sure? When compared to Edelbrock performer 5.0 heads they are almost identical except for the performer heads come with 1.90" intake and 1.60" exhaust and gt-40x's with 1.94" intake and 1.54" exhaust. Combustion chambers are almost the same also, 60cc for Edelbrock and fords' 64cc or you can get them with 58cc but i was looking at the 64cc ones. thanks for any info.

thdrcat · 02-07-2003, 02:04 AM

i don't forsee heads being illegal... but not sure.

yelowjaket · 02-07-2003, 01:08 PM

I got cat's on my exhaust, will that make them street legal?

Rev · 02-07-2003, 02:46 PM

Check to see if they have a C.A.R.B. number (California air resource board). If they're street legal in Ca., then they should be street legal just about anywhere. At least that's my take on it. You can probably get that info from your local SVO Ford dealer or anyone else that sells those heads.

Rev

02-06-2003, 11:56 PM	#1
yelowjaket Registered Member Join Date: Aug 2002 Location: Phoenix, AZ-USA Posts: 114	GT-40x Aluminum heads, street-legal? I'm planning on buying a short block and putting on some GT-40X Aluminum "Turbo Swirl" heads. I've heard these aren't street legal. Can anyone tell me this for sure? When compared to Edelbrock performer 5.0 heads they are almost identical except for the performer heads come with 1.90" intake and 1.60" exhaust and gt-40x's with 1.94" intake and 1.54" exhaust. Combustion chambers are almost the same also, 60cc for Edelbrock and fords' 64cc or you can get them with 58cc but i was looking at the 64cc ones. thanks for any info. __________________ 90redGT -Flowmaster mufflers -BBK 2.5" H-Pipe w/cats -BBK equal length shorty headers -K&N -BBK 65mm Throttle Body -Edelbrock performer 5.0 intake -3.73 gears

02-07-2003, 01:08 PM	#3
yelowjaket Registered Member Join Date: Aug 2002 Location: Phoenix, AZ-USA Posts: 114	Catalytic converters... I got cat's on my exhaust, will that make them street legal? __________________ 90redGT -Flowmaster mufflers -BBK 2.5" H-Pipe w/cats -BBK equal length shorty headers -K&N -BBK 65mm Throttle Body -Edelbrock performer 5.0 intake -3.73 gears

02-07-2003, 02:46 PM	#4
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	C.A.R.B. number Check to see if they have a C.A.R.B. number (California air resource board). If they're street legal in Ca., then they should be street legal just about anywhere. At least that's my take on it. You can probably get that info from your local SVO Ford dealer or anyone else that sells those heads. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe Last edited by Rev; 02-07-2003 at 03:08 PM..

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02-07-2003, 02:04 AM	#2
thdrcat Registered Member Join Date: Jul 2002 Posts: 100	i don't forsee heads being illegal... but not sure.