W2 Stage 3 Ported Small Valve

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MRL Performance

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Well I just got done with a set of W2 stage 3 ported heads, not to bad, I guess.

...........2.02.......1.60 valves

.100....68.90.....69.31
.200....153.88...123.97
.300....207.45...160.08
.400....255.60...181.88
.450....270.29...182.59
.500....289.23...198.97
.550....291.63...206.45
.600....296.62...210.40
 
Just flowed the Mopar W2 intake for this engine. Averaged 296cfm

Also did a ported Super Victor from another engine, averaged 331cfm

I did have a typo at .100 the intake is 68 not 88. fat fingers
 
Looks good to me. I'll have to compare them to mine when I get home tonight. I dont think my low lift #'s were as good as yours, they flowed 292 @ .600 and well over 200 on the exhaust @ .600. Didn't have the valve job done when they were flowed so maybe it helped the numbers every where.
 
MRL Performance said:
Well I just got done with a set of W2 stage 3 ported heads, not to bad, I guess.

...........2.02.......1.60 valves

.100....68.90.....69.31
.200....153.88...123.97
.300....207.45...160.08
.400....255.60...181.88
.450....270.29...182.59
.500....289.23...198.97
.550....291.63...206.45
.600....296.62...210.40
Click to expand...


2.08 1.60 valves

.100 84 89
.200 133 131
.300 173 162
.400 232 190
.500 268 208
.600 288 210
.700 292 212

This was before the valve job. I thought mine was 292 @ .600 but it was @ .700. I done this myself without a flow bench untill the end off the porting. I wish my low lift numbers looked like yours. Great job!

What cubic inch will theese heads go on?
 
I was hoping for a bit more, but its only a 3/8" 2.02 valve. There going on a 418, 11.3 to 1 running E85. Solid roller cam. Hoping for 600HP.
 
Looks good Mike.
What was the first intake tested?
 
Mike,
Do you think 11/32 valve stem would have helped the flow numbers?
 
Smaller valve do have less cross section and should have a small increase.

I have seen them in the high 3teens low 3twenties. Its a Lot of work.
 
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