I've pretty much decided on the LX9 engine to swap into my '63 Triumph Spitfire due to "bang for the buck" considerations but before I pull the trigger I'm wondering what the external dimensions of this engine are? Specifically total width at the cylinder heads and total height (pan to manifold) along with the distance from the bottom of the crank pulley to the top of the manifold.
I've just about worn out Google trying to find the answer with no joy, any help would be greatly appreciated.
I've been lurking here for awhile and gathering info for my parts list, so far I've come up with the following:
GM LX9 Engine
27 lbs./hr injectors and MAF from a GMC 4.2 L6
Fuel injector rail from a GM 3.4L engine
65mm Throttle Body from an Olds Aurora & WOT-Tech TB Adapter
2000 GRAND AM 3.4L ECM
2000 Grand Prix 3.1 Engine Wiring Harness
1994 Camaro 3.4L Engine Timing Cover and new Water Pump
Serpentine Belt simplification kit for Camaro ''L32'' from BMC
New sensors that will integrate with the ECM & Harness
Mallory 4305M fuel pressure regulator
External Crank Trigger Kit from WOT-Tech
3100 Coil Pack & ICM
EGR Delete Kit
Custom 32" Headers
"It's your car. Do with it what you wish, but as you enter this unknown world you will need to invent the wheel all over again. For the adventurous and those that are backyard mechanics who have nothing but time you might like this. Most have plenty of frustrating moments and the process usually takes significantly longer then what anyone could imagine. The end result of this conversion is completely up to you." - Jon McCullough of BMCautos.com
Not sure if the belt kit from BMC will work for your application. Another consideration is the hole locations in the heads being different than the iron heads may cause problems for accessory brackets.
The external crank trigger kit you are referring to will not work with the RWD pulley setup. We recently made a small batch of triggers designed for your application. The kit includes the CPS mount and a new dampener with the timing notches machined into it. See picture below of the prototype.
What transmission are you planning to use?
I don't know of anyone with FWD 60V6 Spitfire conversion but we have done a 3400 TR3 and have customers who have done or are doing TR6 conversions. The majority have been with 3400s but one of the in process ones is a 3900 swap.
Are you planning to use the stock rear end? I've got a 78 1500 in my father in-laws drive way and we've been going back and forth on what engine to put in it and I was kinda leery on the V6's due to possibly how much work is necessary from the engine back. I'm not so worried about the motor setup but more the transmission and rear end to handle the power increase.
He's already got a 76 fully restored and this is another one that he bought that needs quite a bit of work so that's why we were trying to think up a different motor for it.
I have Desktop Dyno 2003 and Engine Analyzer Pro 3.3 and get wildly varying results program to program.
How much HP/TQ can I realistically expect from an LX9 with a 65mm TB, high flow MAF, 27Lb injectors, ram air CAI, a high octane tune, (OBD II) and equal length headers?
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