LT1-LT4 Modifications 1993-97 Gen II Small Block V8

LT1 engine build help

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Old Nov 30, 2011 | 03:25 PM
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Default LT1 engine build help

Hey guys i have a 94 Z26 M6..the car has 210K miles on it...what i want to do is get the LE2 Heads and 232/240 Cam from lloyd...Is it safe to run this top end on the block since it has 210K miles?? Im on a budget so i cant really build the bottom right now! maybe in about a year i can...Just looking for help and ideas about this..it is my daily and i will take it to the track about once or twice every other month....your help will be greatly appreciated..if you have any questions that you need to know just ask thanks!!
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Old Nov 30, 2011 | 03:44 PM
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A cam of that size is going to want some pretty high RPMs to make power. If you do plan on running it, just be prepared (financially) IF the bottom end goes.

It would also help to do a compression/leakdown test. That will give you an idea of the health of the motor.

People have done heads/cam swap on higher mileage LT1s without a problem, but 210k is a LOT.
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Old Nov 30, 2011 | 03:49 PM
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yeah it is alot and thats what im trying to explain to my dad lol....what if i got a LT4 shortblock from a 96 Grandsport Vette..it has 39K miles on it..the guy is asking $850 for it...should i look into getting that block? What about LE2 heads with the cc306? i think its alil lower lift than the big LE cam i listed
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Old Nov 30, 2011 | 03:51 PM
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If you get a newer low mileage shortblock I would stick with the original plan with the LE heads/cam (but $850 is a bit high for a shortblock...I wouldn't pay any more than $450 or so). Don't F with the 306 - there are better options available nowadays.
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Old Nov 30, 2011 | 03:56 PM
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thanks i thought 850 was high too..so ill offer $400 and see what he says but i wont go higher than 450...pm me ur email so i can send u pics of the block if thats cool..not too experienced this is my first build lol...I have a brand new cc503 never used that ive had for about 2 years..i figure thats way to small lol
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Old Nov 30, 2011 | 04:12 PM
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but ill deff go with the LE heads/cam and keep searching for a newer lower mileage block if the guy doesnt want to drop under 850...will i still get good power with a stock 350 block with the heads and cam..also what # injectors do you suggest and should i upgrade my oil and fuel pump? also should i keep my pacesetter mids or go LT's??
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Old Dec 1, 2011 | 09:50 AM
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you should carefully consider what parts are on the lt4 block--oil pan, front cover????

850 is a very cheap price for a stock low mile LT4 as there weren't very many made---plus has 4 bolt caps and most likely a nice set of numbers for someone restoring a 96 vett
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Old Dec 1, 2011 | 10:04 AM
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I'm sure lots of guys on here will give you great answers, But go ahead and give Lloyd a call. He will also answer all these and other questions you have. Tell him what your goals are and he will lead you in thee right direction GL. He does recommend you change your fuel pump this is a great one http://www.racetronix.biz/itemdesc.a...%2D003&eq=&Tp=
When i got my LE2 heads and cam he suggested I use 36-37 pound injectors
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Old Dec 1, 2011 | 10:06 AM
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personally i think it would be a bit irresponsible as a builder to put a good heads and cam package on a 210k mile motor but then again thats me.....
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Old Dec 1, 2011 | 10:21 AM
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Your right, You never know how the motor was cared for
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Old Dec 1, 2011 | 11:13 AM
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Originally Posted by quik95lt1
personally i think it would be a bit irresponsible as a builder to put a good heads and cam package on a 210k mile motor but then again thats me.....
I totally agree, I would put your money in every Bolt on possible if you haven't done so already, Put gears in the rear, and a new clutch, If your clutch is stock, that would probably go anyway with the LE setup. Work on the suspension. I had a customer with a "Bone Stock" Lt less converter, and a street tune but had every suspension work done, He ran 13.00 flat and this was his first outing at a track..
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