mtnman38 Posted November 5, 2005 Share Posted November 5, 2005 hey all can any body tell me if there is a way to tell between a brat engine and a hatch/wagon ie, vin # engine vin # visual diffrences I have three brats and they all have running engines I know that one is a true brat but I have a feeling that the other two may have been switched out any insight would be most helpful Thanks LT Quote Link to comment Share on other sites More sharing options...
ShawnW Posted November 5, 2005 Share Posted November 5, 2005 No way at all, sorry. Quote Link to comment Share on other sites More sharing options...
suberdave Posted November 6, 2005 Share Posted November 6, 2005 not trying to be smart... but why dose it matter? arnt they the same engine? Quote Link to comment Share on other sites More sharing options...
ShawnW Posted November 6, 2005 Share Posted November 6, 2005 The cams are usually different duration. Quote Link to comment Share on other sites More sharing options...
Ross Posted November 6, 2005 Share Posted November 6, 2005 hey all can any body tell me if there is a way to tell between a brat engine and a hatch/wagon ie, vin # engine vin # visual diffrences I have three brats and they all have running engines I know that one is a true brat but I have a feeling that the other two may have been switched out any insight would be most helpful Thanks LT If you're real keen, take the rocker cover off and set up a DTI on the end of a valve or push rod or something, and measure the duration. Doesn't the brat engine have more low down torque? Tie two brats together by the tow bar, and have a tug-of-war with them. the winner has the brat engine! Quote Link to comment Share on other sites More sharing options...
jeffast Posted November 6, 2005 Share Posted November 6, 2005 close your eyes and let the spirits tell you the answer sry smart rump roast Quote Link to comment Share on other sites More sharing options...
Jerry DeMoss Posted November 6, 2005 Share Posted November 6, 2005 The cams are usually different duration. I agree with Shawn.Different cam on the brat compared to the hatch.More duration=more torque. Quote Link to comment Share on other sites More sharing options...
mtnman38 Posted April 27, 2006 Author Share Posted April 27, 2006 yep definitly more torque well if anyone else knows a sure fire way to tell with out checking the valves/cam Please share Thanks Quote Link to comment Share on other sites More sharing options...
mcbrat Posted April 27, 2006 Share Posted April 27, 2006 I agree with Shawn.Different cam on the brat compared to the hatch.More duration=more torque. .... that may have been only for certain years.... the 84 parts manual does not show a different cam for the Brat.... Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted April 27, 2006 Share Posted April 27, 2006 I think the difference was the 81/82 only (81 GL - DL was 1600). The small intake valve engines had different cams than the large valve - and possibly for the Brat vs. the rest. Personally I don't think so tho. After 82 the large valve heads were all the same - except 83/84 automatics which got the hydro valve train. The 85+ were all hydro - same cam Brat vs. Hatch. At any rate - the performace specs were the same for all - and I've never seen any part numbers to verify this "wives tale". It's very much like the 2WD distributor BS - there is ONE advance curve - for all models. Your seat of the pants dyno is out of adjustment guys. One plant builds engines - another assembles cars - there is no reason to believe they would change something like an engine internal for one body style over another. It just doesn't make sense. All the 4WD gearings are the same as well. The Brat "feels" more powerfull at low speed because of it's lighter weight. *edit*: Here's the part number for 82 - 415107100 - listed same for all EA81's. McBrat say his 84 manual shows the same info... I really don't know how this rumor got started. Weird. GD Quote Link to comment Share on other sites More sharing options...
SakoTGrimes Posted April 28, 2006 Share Posted April 28, 2006 Well, IF you have the original owners manuals for all 3, they should have the # in them that matches one stamped into the engine (different than VIN) Mine does. Quote Link to comment Share on other sites More sharing options...
Durania Posted April 28, 2006 Share Posted April 28, 2006 Its all (majority) EA-81 Baby! Quote Link to comment Share on other sites More sharing options...
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