Which block to use
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Instructor
Joined: Jan 2003
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From: TAMPA FL
Which block to use
Planning a big inch small block. Any input on which block to use, Dart, or Motown. If you have any experience with either your input will be appreciated.
Thanks
Dennis
Thanks
Dennis
Team Owner
Joined: Nov 2004
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From: Sorrento Italy
Originally Posted by 73383
Planning a big inch small block. Any input on which block to use, Dart, or Motown. If you have any experience with either your input will be appreciated.
Thanks
Dennis
Thanks
Dennis
next engine transplant i'll get a lite motown alu blk, saves 60 lbs and is said to be as strong as a steel one
Instructor
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From: Lapeer Michigan
Race Director
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
I am doing the same thing, I am building a 427ci so I am going with Bill Mitchell Motown with the splayed steel caps, it will accept a 4 inch crank and the Little M will not without some grinding.
The Motown block was designed to fix all the problems with OEM small block like thin cylinder walls, you can bore a Motown to 4.200"
Only problem with that is they don't make pistons or rings that big yet. You can use all stock off the shelf components on the Motown like oil pans, timing chain cover etc.
Nothing wrong with the Little M other than you probably have to clearance it for a 4 inch crank
The Motown block was designed to fix all the problems with OEM small block like thin cylinder walls, you can bore a Motown to 4.200"
Only problem with that is they don't make pistons or rings that big yet. You can use all stock off the shelf components on the Motown like oil pans, timing chain cover etc. Nothing wrong with the Little M other than you probably have to clearance it for a 4 inch crank
Thread Starter
Instructor
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From: TAMPA FL
Originally Posted by redvetracr
You should also consider the GM Bowtie race block.
...redvetracr
...redvetracr
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Thread Starter
Instructor
Joined: Jan 2003
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From: TAMPA FL
Originally Posted by ratflinger
You can stretch a Motown block up to 454, if you've got the cash and the cajones.
Cajones, not a problem, cash is always a problem, unless I win the lottery.
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From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Both are supposed to come .010" under so you can hone to your own pistons, I know the Motown block does but the literature on the Little M is a little fuzzy. Bowtie blocks are good but you can't overbore them like the Motown