September 2004, we redesigned our Model A Ford intake port to provide even more flow at a higher velocity. This new port will produce even more power than before!

MODEL A FORD CUSTOM 1.700 INTAKE VALVE,PORTED, BRUMFIELD HEAD
IN. VALVE DIA.   1.700                
TEST NUMBER   1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000 9.000
TEST PRESSURE   25.00 25.00 25.00 25.00 25.00 25.00 25.00 25.00 25.00
IN. LIFT   0.050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 0.450
CORRECTED   028.98 051.01 075.60 095.26 108.86 116.88 124.29 128.52 130.94
TEST CFM
NOTES: 1.700 P.A.A. INTAKE VALVE, PORTED BLOCK, STREET SINGLE ANGLE VALVE JOB, BRUMFIELD HEAD


MODEL A FORD 1.560 INTAKE VALVE,STOCK PORT
IN. VALVE DIA.   1.560                
TEST NUMBER   1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000 9.000
TEST PRESSURE   25.00 25.00 25.00 25.00 25.00 25.00 25.00 25.00 25.00
IN. LIFT   0.050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 0.450
CORRECTED   021.75 040.76 061.71 079.35 092.57 099.18 103.74 105.06 105.80
TEST CFM
NOTES:
1.560 INTAKE VALVE, UNPORTED BLOCK, BRUMFIELD HEAD
STREET SINGLE ANGLE VALVE JOB

THIS1.700" INTAKE VALVE & PORTING YIELDS A 20% FLOW INCREASE. THIS RESULTS IN A 6 TO 7 HORSEPOWER INCREASE! AS FROM FORD, THE EXHAUST OUT FLOWS THE INTAKE, THIS IS A VERY BAD SITUATION FOR MAKING HORSEPOWER! USING THE HIGH PERFORMANCE INTAKE VALVE RESULTS IN AN INTAKE SYSTEM THAT OUT FLOWS THE EXHAUST. THIS GREATLY CONTRIBUTES TO THE EXCELLENT POWER GAIN!

THE EXHAUST PORT IN THE MODEL A FORD ENGINE FLOWS MORE THAN IS ACTUALLY IDEAL TO CREATE THE PROPER INTAKE TO EXHAUST BALANCE. THIS BEING THE CASE WE DO NOT RECOMEND MODIFYING THE STOCK EXHAUST VALVE SIZE OR SHAPE & DO NOT RECOMEND ANY PORT WORK BE DONE IN THE EXHAUST PORT.

CONTACT US FOR INFORMATION & PRICING ON THE SEAT INSTALLATION & INTAKE PORT WORK ON YOUR MODEL A FORD ENGINE.

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