Granatelli Signature Series Head Porting for 1996-2010 Mustangs

• TFS heads in stock
• Granatelli Signature Series in-house porting stages 1-4 for 2V, 3V & 4V

Head Type: Mustang 2V PI Heads Stock (no port work)
Notes: All Flow numbers @ 28" Stock
Valve Lift	Intake CFM	Exhaust CFM	%int/exh
100	57.5	49.3	85.74%
200	104.3	88.5	84.85%
300	144.3	112.4	77.89%
400	165.2	127.6	77.24%
500	175.5	134.7	76.75%
600	178.5	137	76.75%
700	181.4	138.6	76.41%


Head Type: Mustang 2V PI Heads Street Port - P/N 700902 $500.00
Notes: All Flow numbers @ 28" Flowed on 3.55" bore and no flow pipe on exhaust
Valve Lift	Intake CFM	Exhaust CFM	%int/exh
100	57.7	52.4	90.81%
200	106.6	88.6	83.11%
300	147.5	118	80.00%
400	168.2	140.1	83.29%
500	185.8	152.5	82.08%
600	196.2	165.4	84.30%
700	199.1	166.9	83.83%

Head Type: Mustang 2V PI Heads w/ Standard Race Port - P/N 700903 $750.00
Notes: All Flow numbers @ 28" - Flowed on 3.55" bore and no flow pipe on exhaust. Does not include your choice of valve material. Requires 1.845 intake & 1.455 Exh
Valve Lift	Intake CFM	Exhaust CFM	%int/exh
100	57.7	53.9	93.41%
200	119.1	98.6	82.79%
300	166.7	132.4	79.42%
400	200.6	168.5	84.00%
500	209.5	177.8	84.87%
600	210.2	180.9	86.06%
700	211	185.5	87.91%

Head Type: Mustang 2V PI Heads w/ Full Race Port - P/N 700904 $2000.00
Notes: All Flow numbers @ 28" Flowed on 3.70" bore and no flow pipe on exhuast - Welded chambers. Does not include your choice of valve material. Requires 1.9 intake & 1.55 Exh
Valve Lift	Intake CFM	Exhaust CFM	%int/exh
100	62.4	58.4	93.59%
200	122	102	83.61%
300	175.2	148.9	84.99%
400	209.5	181.4	86.59%
500	227.3	196.4	86.41%
600	236.4	201.8	85.36%
700	251.3	206	81.97%