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SB Head Flow #'s

Info Provided by Board Member Tailfins

	Stock Edelbrock Intake		Stock Edelbrock Exhaust			Hughes Edelbrock Stage I Ported		Indy Edelbrock Relocated Pushrod "Stock"		Indy Edelbrock Relocated Pushrod Full Port & Polish		Hensley Racing			Muscle Motors Stage II Porting
LIFT	Worst INT	Best INT	Worst EXH	Best EXH	INT		EXH	INT	EXH	INT	EXH	INT	EXH	INT		EXH
.100	68.4	70.2	67.3	70.7	70.7		74.1	75	66	72	66	N/A	N/A	-		-
.200	126.9	136.0	97.6	105.6	137.1		109.0	129	109	132	113	N/A	N/A	140.2		-
.300	178.6	189.8	127.0	138.2	189.8		143.8	187	139	197	145	N/A	N/A	206.3		133.4
.350	199.9	217.0	140.5	149.4	226.0		156.2					N/A	N/A	-		-
.400	222.6	231.6	146.1	154.0	240.6		162.9	230	158	248	170	N/A	N/A	235.4		157.2
.450	225.8	238.3	149.4	160.7	246.2		167.4					N/A	N/A	-		-
.500	228.2	244.0	154.0	174.2	252.9		177.5	270	169	277	183	N/A	N/A	257.8		168.3
.550	231.6	252.8	166.3	180.9	253.0		184.3					N/A	N/A	-		-
.600	233.8	253.0	169.6	185.4	255.2		189.8	275	176	302	191	260	N/A	265.3		176.5
.650	234.9	255.2	172.0	188.7	257.4		191.1					N/A	N/A	-		-
.700	-----	-----	-----	-----	-----		-----	268	182	306	197	N/A	N/A	265.3		176.5

Hughes Stage I porting = Exhaust port volume: 80cc, Intake port volume: 174cc, All numbers measured at 28" H2O, Int Valve 2.02 Ex valve 1.60

Indy Edelbrock = Test Bore = 4.030, Test Pressure = 28" Stock Int Valve 2.055 Ex Valve 1.60 Ported Int Valve 2.080 Ex Valve 1.60

Hensley Racing = did not have complete flow numbers available, however they did caution that flow bench’s do differ and comparisons may not be accurate due to the differences between individual bench’s

Muscle Motors = Int 2.02 Exh 1.60 @28"

These are some flow #'s for the MP camando magnum heads.

These #'s were done with a 2.02 intake and 1.60 exhaust valves.Standard stock type not the high flow type.

This first set of #'s is for the heads before we went for all out high flow #'s

Exhaust
.200=084
.300=115
.400=141
.500=163
.600=177
.700=187
.800=188

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These #'s are our final #'s after all the porting had been done. We lost some flow on the low end lifts and gained on the higher lifts.

Exhaust
.200=094
.300=126
.400=152
.500=176
.600=187
.700=193
.800=196

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This info below provided by board member Richard

Richard
The engine I am working on is a 410, eagle rod, CP piston, 14.5 compression with W2 heads.

Flow numbers on the W-2 heads are as follows. Now, the temperature in the shop when they were flowed was 106 and the humidity was around 60%, so, the number will only go up. Machinist says they will probably be about 10 higher. Will have to wait for the weather around here to cool off so that we could get numbers at a lower temperature.

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