trying to make sure of what engine i have in my 91 Z.... according to the vin and previous owner it has the stock 305 tpi engine. but it seems to have been changed as the wireing harness and all the relays and all are different then stock. the engine code reads 10054727 is this a 350 roller engine or what? i have a knock in the lower end and need to get parts but of course i need to know what engine it is. i am pretty sure it is a 350, but is there any way to tell weather it is roller or standard lifters without tearing it down. thats in advance for any help

 

10054727...350...86-up...2 or 4...one piece rear seal, some "Made in Canada"

Information courtesy of http://www.mortec.com/castnum.htm

 

Viprklr,

thanks for the info... that confirms it is a 350.. is there any way to tell if it is a roller block out of a car or is it a truck block without roller lifters?