Head Questions???HELP!!!
07-28-2005, 06:13 AM
#1
2nd Gear Member
Thread Starter
Join Date: Jul 2005
Location: Alice, TX
Posts: 373
Head Questions???HELP!!!
If I got the D46 Hi-Flow Heads for my 98 GT what else would I have to swap besides the intake? And would the Intake have to be a Bullit intake? Would I still be able to keep my S/C on? Also, would I have to adjust my timing or cam? Keep in mind it's not a PI Swap, they are 4.6 2V FMS Hi-Flow Heads.
07-28-2005, 08:31 AM
#2
4th Gear Member
Join Date: Apr 2005
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Posts: 1,036
RE: Head Questions???HELP!!!
This is what the Steeda website says about the heads:
Direct replacement for stock 96-98 4.6L heads.
Will fit 99 when used with Ford Racing Intake Manifold.
Accepts production or SVO intake and exhaust manifolds
46.83mm intake valve diameters (improves airflow 27% over stock)
35.88mm exhaust valve diameters (improves airflow 44% over stock)
320-T6 aluminum casting
Perfect for Hi-lift cams, larger springs and custom porting & polishing
Yes, you can keep the s/c, I would recommend maybe another tune though (due to the different airflows).
Direct replacement for stock 96-98 4.6L heads.
Will fit 99 when used with Ford Racing Intake Manifold.
Accepts production or SVO intake and exhaust manifolds
46.83mm intake valve diameters (improves airflow 27% over stock)
35.88mm exhaust valve diameters (improves airflow 44% over stock)
320-T6 aluminum casting
Perfect for Hi-lift cams, larger springs and custom porting & polishing
Yes, you can keep the s/c, I would recommend maybe another tune though (due to the different airflows).
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