The 272 debate: small block or big block?
#1
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From: IAD/FLL
The 272 debate: small block or big block?
Since I came across the following ad, it's high time to get some good debate on why so many think a 272 should have big blocks:
http://adcache.boattraderonline.com/6/2/9/85896629.htm
Remember, we're talking the '86-'89 272 here. From what I've read the 272, 292 & 311 of the era are pretty similar, but I don't debate the need for the bigger boats to have at least 365hpx2 = big blocks. What does a 272 with stock 330hp big blocks gain over a 260hp, or eventually a 300-320hp small block package? More weight, higher fuel burn, a few mph over a small block package, Bravo 1s with room for expansion, less room in the engine compartment...
If my goal is a relatively fuel efficient 35-40mph cruise and 55mph+ top speed, why wouldn't I be happy starting with 260hp small blocks?
Please share any (on topic) thoughts, experience, ideas, suggestions.
Thanks,
Michael
http://adcache.boattraderonline.com/6/2/9/85896629.htm
Remember, we're talking the '86-'89 272 here. From what I've read the 272, 292 & 311 of the era are pretty similar, but I don't debate the need for the bigger boats to have at least 365hpx2 = big blocks. What does a 272 with stock 330hp big blocks gain over a 260hp, or eventually a 300-320hp small block package? More weight, higher fuel burn, a few mph over a small block package, Bravo 1s with room for expansion, less room in the engine compartment...
If my goal is a relatively fuel efficient 35-40mph cruise and 55mph+ top speed, why wouldn't I be happy starting with 260hp small blocks?
Please share any (on topic) thoughts, experience, ideas, suggestions.
Thanks,
Michael
Last edited by handfulz28; 09-24-2006 at 05:20 PM. Reason: edit
#2
If your looking for good stock power this boat looks nice. But with 600 plus hours on original power it will be costly to replace.I am sure you can get more life out of these engines, plus it is fresh water. I feel the same way you do with a nice cruise speed of 45mph and a max of 60mph you will get good economy.
good luck
good luck
#3
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From: Lake of the Ozarks MO
Small blocks are my choice. The have more room in the engine comparment and give you a nice ride. Back in the 80`s we sold about 85% of our boats w/small blocks. If you were looking for more power I would drive the 260`s for a couple of seasons and save my money and drop in a set of newer model 300`s long blocks. Or you may find a pair of newer motors someone are removing because they thimnk they have to have big blocks. I fail to see the change as we are now getting 300 to 320hp out of these great little engines and that is the same hp that the 454 put out in the mid 80`s. Seems to make sense to me!
#4
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From: Grand Rapids MI
Originally Posted by selpel
Small blocks are my choice. If you were looking for more power I would drive the 260`s for a couple of seasons I fail to see the change as we are now getting 300 to 320hp out of these great little engines and that is the same hp that the 454 put out in the mid 80`s. Seems to make sense to me!
BTW just get in your truck and drive to MI there is a real nice 272 here for ya
Last edited by Car Biz; 09-25-2006 at 08:30 AM.
#5
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From: IAD/FLL
Thanks Car Biz, I appreciate the time you spent on the phone with me.
Unfortunately, I'm more confused than ever. I've gone back and started reading most of the relevant 60+ pages of threads here in the Formula forum. After all my effort looking for a good value 272, I think I'm going to go look at this:
http://miami.craigslist.org/boa/201749098.html
Thanks guys, keep it coming...
Michael
Unfortunately, I'm more confused than ever. I've gone back and started reading most of the relevant 60+ pages of threads here in the Formula forum. After all my effort looking for a good value 272, I think I'm going to go look at this:
http://miami.craigslist.org/boa/201749098.html
Thanks guys, keep it coming...
Michael
#7
Originally Posted by handfulz28
Thanks Car Biz, I appreciate the time you spent on the phone with me.
Unfortunately, I'm more confused than ever. I've gone back and started reading most of the relevant 60+ pages of threads here in the Formula forum. After all my effort looking for a good value 272, I think I'm going to go look at this:
http://miami.craigslist.org/boa/201749098.html
Thanks guys, keep it coming...
Michael
Unfortunately, I'm more confused than ever. I've gone back and started reading most of the relevant 60+ pages of threads here in the Formula forum. After all my effort looking for a good value 272, I think I'm going to go look at this:
http://miami.craigslist.org/boa/201749098.html
Thanks guys, keep it coming...
Michael
#8
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Joined: Aug 2004
Posts: 288
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From: Cleveland, Ohio
I had an 85 272 ls with 260s it did about 50mph cruise @ 42pmh. I upgraded the motors to about 325 hp. I only picked up about 4-5 mph But it guzzeled gas. I went to 330's and the boat didnt handle as well but did get up to 59mph. these boats were made for small blockes. If I had to do it all over again I would leave the small block 260's and the 2.0 mpg instead of the 1.2mpg I ended up with. The added weight was detrimental. The best thing about these boats with the 260 set up is that they don't break very often but if they do it's generally a cheap fix.
#9
I prefer big blocks because they virually all came with Bravos(except 1987s) and I can cruise all day at 50 and only 3000 rpms.
Last edited by mopower; 10-15-2006 at 02:21 PM.
#10
Originally Posted by mopower
I prefer big blocks because they virually all can with Bravos(except 1987s) and I can cruise all day at 50 and only 3000 rpms. 




