I want to find out what size engine I have it is in a street rod so no vin but the block # is 4276382 I believe and it is a slant six.
Any help is appreciated

 

Kevin - I can not find that block number in any of my searching - but if you will pull a plug and measure the stroke you can determine the size by that - the stroke on the 170 is 3.125 - the stoke on the 198 is 3.64 and the stroke on the 225 is 4.125 - hope that will help - jack