What are the differences between your big valve heads and the ones
offered by Faste German Auto?
Are they different sized valves, or similar?

Todd
'88 Westy

Robert Donalds wrote:

> Fellow vanagon types I have been building a 2.1 engine for my own 85
> camper and along with the usual upgrades of the reground OEM cam with
> more duration, a little more piston skirt clearance and some major
> head work. I decided to try a set of larger valves and larger harder
> valve seats. After all the work to get larger valves and seats into a
> pair of AMC heads and doing the high flow valve job I sent the heads
> out to have them flow tested on a flow bench. The flow bench measures
> cubic feet of air moving threw each port at a given valve lift. Some
> of you might recall that I had some flow testing done when I started
> doing high flow valve jobs on stock heads with varying degrees of
> porting work. Flow bench test results1 stock AMC head intake port2
> ported and polished AMC head stock valve intake port3 Boston Bobs big
> valve AMC head minor porting
> CFM.------------------------------------------------------------------- Lift
> NO.1intake  NO.2 intake  NO.3 intake.050           24.8
> 33.0              34.8.100           47.1            52.2
> 57.3.200           89.6            91.4             108.4.250
> 115.4           116.7            132.8.300         125.3
> 128.5            145.8.350         137.6           145.3
> 171.4.400         144.9           158.8            181.3        this
> is above stock lift but I thought it was of interest.450
> 147.8           174.1            186.0        to Robert
> Lilly.500         154.6           179.0            190.6 as you can
> see I am very pleased with the results.I am tempted but wont be using
> ratio rockersmaybe a chip if they have them for the 85 fuel injection
> system next yearno dyno testing will be done unless your payingno
> estimates of horse power wiil be offeredI am still installing the
> engine and will report on power when its sorted outat that point I
> will decide whether to offer the large valve heads on my
> rebuiltengines Bob Donaldshttp://www.bostonengine as always all rights
> reserved

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