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I will have to measure but I think the exhaust valves are 1.56 .
I have some heavily ported 128s I need to sell they were ported bye As&m.
The flow number provided were, I'm sure the 113s are similar in flow.
Intake
Lift CFM
0.1 68.20
0.2 124.10
0.3 179.60
0.4 213.80
0.5 227.00
0.6 233.10
I also have a fresh set of center bolt valve cover 128 heads ported bye As&m
Unknown springs. $950 shipped obo
I have a set of 113s I've had sitting since the 90s 16 passes at the track like new
$550 plus the ride.
I also have a fresh set of center bolt valve cover 128 heads ported bye As&m
Unknown springs. $950 shipped obo
I have a set of 113s I've had sitting since the 90s 16 passes at the track like new
$550 plus the ride.
I also have a fresh set of center bolt valve cover 128 heads ported bye As&m
Unknown springs. $950 shipped obo
I have a set of 113s I've had sitting since the 90s 16 passes at the track like new
$550 plus the ride.
I also have a fresh set of center bolt valve cover 128 heads ported bye As&m
Unknown springs. $950 shipped obo
I have a set of 113s I've had sitting since the 90s 16 passes at the track like new
$550 plus the ride.