Identifying a 400 small block chevy
10-01-2009, 08:50 PM
#11
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how do you then know if its a 350 and not a 305? You need to find the casting numbers....
A 383 can have an externally balanced dampner, and trick you. Core pulgs can trick you, thats an old dirt track racers trick. Find a 400 with two core plugs and throw in an internally balanced crank. = looks like a 350
A 383 can have an externally balanced dampner, and trick you. Core pulgs can trick you, thats an old dirt track racers trick. Find a 400 with two core plugs and throw in an internally balanced crank. = looks like a 350
10-01-2009, 11:10 PM
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how do you then know if its a 350 and not a 305? You need to find the casting numbers....
A 383 can have an externally balanced dampner, and trick you. Core pulgs can trick you, thats an old dirt track racers trick. Find a 400 with two core plugs and throw in an internally balanced crank. = looks like a 350
A 383 can have an externally balanced dampner, and trick you. Core pulgs can trick you, thats an old dirt track racers trick. Find a 400 with two core plugs and throw in an internally balanced crank. = looks like a 350
10-01-2009, 11:17 PM
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we are gonna pull the heads in a week or two so he can have them rebuilt, and we are gonna put his cam in it. not sure how to tell if its a 400? i went over to his house lkast nite to look at the balancer, its not a 400 balancer, cant find the casting #s, dunno. i doubt its a 305,prolly a 350. we will soon see........ole sweet pea sure is purty tho, lmao!!!!!
10-01-2009, 11:30 PM
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put some double humps or vortec heads on it and that turd will come alive.. ive gotten an edelbrock performer intake id sell ya...the casting number is behind the the drivers side head.
10-02-2009, 04:02 AM
#17
Also doubting it's a 400 but as stated, check the casting it's right behind the head on the block. Spray some degreaser or something on it, you'll see it. For casting numbers go here http://www.mortec.com/castnum.htm
Here is a pic of my dads 400
Poor thing was rebuilt, driven 8 miles and been parked for about 5-6 years now.
Here is a pic of my dads 400
Poor thing was rebuilt, driven 8 miles and been parked for about 5-6 years now.
09-11-2013, 05:30 PM
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