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> engine questions, getting some ideas
ws91420
post Jan 14 2007, 11:51 PM
Post #1


Yes I have one a Lensley 914
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A few questions about building a performance type 4

2.0 heads can you do a port and polish on them? will it help anything?

I know a 2056 is 96mm bore with 71mm stock 2.0 stroke
is a 2270 a stoker motor or just a bigger bore
what bore and stroke is a 2270

if I go 2270 is 40mm webers enough
or is a 2056 good enough for me w/ the webers


what advantage is a counterweighted crank in these motors
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So.Cal.914
post Jan 15 2007, 12:52 AM
Post #2


"...And it has a front trunk too."
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I ported and polished my heads, did it help? Every little bit helps. I also have

a 71mm counterbalanced crank and the differance was noticable. It runs alot

smoother than it did without and on a four that is worth it. I balanced the rods and

pistons also and lightened the flywheel, lil puppy revs nice. But this all costs

a hell of alot I ran mine for 15 years with a stock crank, rods and heads and it

was fun just like that. A good cam, 2.0 crank & rods, 96's, good ignition and

fuel delivery system will make a world of differance. Head work will help even

more. IMHO
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