289
6th Gear Member
Joined: Aug 2007
Posts: 5,896
From: Elk Grove, CA
RE: 289
+1
It's a common myth that 302's have longer cylinder skirts than 289's. I've talked to people who have mic'd both blocks side by side and come up with the exact same number. I've also talked to people running 347 strokers on their original 289 blocks without any issues. I stroked my original 289 block to 331 and I'm very happy with it.
Advantages to stroking are increased torque and power potential. They generally tend to build power at lower rpm's than a similarly built 289. The downsides are increased rotating mass (but not drastically) which causes the engine to wind upmore slowly,and increased piston speed, which increases stress on the block and rotating assembly and limits rpm's.
A well built 289 will spool very fast and will want to stay at high rpm's to make power. You can build a stroker to take those same rpm's, but it'll be harder and more expensive. It's easier to build a stroker for a broader powerband, giving you more power across the board and leaving the car driveable rather than having to wind the **** out of it to make power, which decreases driveability.
It's a common myth that 302's have longer cylinder skirts than 289's. I've talked to people who have mic'd both blocks side by side and come up with the exact same number. I've also talked to people running 347 strokers on their original 289 blocks without any issues. I stroked my original 289 block to 331 and I'm very happy with it.
Advantages to stroking are increased torque and power potential. They generally tend to build power at lower rpm's than a similarly built 289. The downsides are increased rotating mass (but not drastically) which causes the engine to wind upmore slowly,and increased piston speed, which increases stress on the block and rotating assembly and limits rpm's.
A well built 289 will spool very fast and will want to stay at high rpm's to make power. You can build a stroker to take those same rpm's, but it'll be harder and more expensive. It's easier to build a stroker for a broader powerband, giving you more power across the board and leaving the car driveable rather than having to wind the **** out of it to make power, which decreases driveability.
6th Gear Member
Joined: Jan 2007
Posts: 5,469
From: AR
RE: 289
ORIGINAL: Starfury
+1
It's a common myth that 302's have longer cylinder skirts than 289's. I've talked to people who have mic'd both blocks side by side and come up with the exact same number. I've also talked to people running 347 strokers on their original 289 blocks without any issues. I stroked my original 289 block to 331 and I'm very happy with it.
Advantages to stroking are increased torque and power potential. They generally tend to build power at lower rpm's than a similarly built 289. The downsides are increased rotating mass (but not drastically) which causes the engine to wind upmore slowly,and increased piston speed, which increases stress on the block and rotating assembly and limits rpm's.
A well built 289 will spool very fast and will want to stay at high rpm's to make power. You can build a stroker to take those same rpm's, but it'll be harder and more expensive. It's easier to build a stroker for a broader powerband, giving you more power across the board and leaving the car driveable rather than having to wind the **** out of it to make power, which decreases driveability.
+1
It's a common myth that 302's have longer cylinder skirts than 289's. I've talked to people who have mic'd both blocks side by side and come up with the exact same number. I've also talked to people running 347 strokers on their original 289 blocks without any issues. I stroked my original 289 block to 331 and I'm very happy with it.
Advantages to stroking are increased torque and power potential. They generally tend to build power at lower rpm's than a similarly built 289. The downsides are increased rotating mass (but not drastically) which causes the engine to wind upmore slowly,and increased piston speed, which increases stress on the block and rotating assembly and limits rpm's.
A well built 289 will spool very fast and will want to stay at high rpm's to make power. You can build a stroker to take those same rpm's, but it'll be harder and more expensive. It's easier to build a stroker for a broader powerband, giving you more power across the board and leaving the car driveable rather than having to wind the **** out of it to make power, which decreases driveability.
I was going to write the exact same thing!!
Not really,,,,,
(but I will have to say thatwas a very well written and concise post Tad!!)
6th Gear Member
Joined: Aug 2007
Posts: 5,896
From: Elk Grove, CA
RE: 289
given the option and assuming both will cost the same (and all other engine components being equal), I have to agree. But I don't think actually swapping to a 289 from a 302 is cost effective
