mid 70 302? - Page 2

Shankin · 12-16-2005, 06:26 AM

The earlier is stronger but unless you plan on making over 550 to the tires i would use the roller block. The other block will require a retrofit cam or lifters to use a roller set up. This can get costly.

Dale McPeters · 12-16-2005, 08:04 AM

Best solution on 302 roller based setups that will be making lots of power..........

After market block such as the Dart 8.2 Block.................

I now have seen first hand what happens to the stock 5.0 roller blocks when used in high performance applications. They do not last if you make good power with them......

Note this is just MHO....YMMV.

coupe · 12-16-2005, 08:39 AM

x2

To do it right you should really go Dart, R-302, or similar, but they take a big investment financially...trust me.

The 289/302 engine from the factory was a "thin-walled casting" and included the 60's thru the 90's (except those made in Mexico). It kept the weight low. There are some minor differences, but they are all limited to aboout 550-600 at the wheels and even then, they're a time-bomb. For 400-450 rwhp, you'll only be wasting money on the retro-roller stuff...so keep the roller and put a 347 in it.

Dale McPeters · 12-16-2005, 08:49 AM

Quote:

Originally Posted by coupe

x2
To do it right you should really go Dart, R-302, or similar, but they take a big investment financially...trust me.

Yep a lot of cubic cash......

Well unless your name is Lee H. and you
talk the distributor into getting you one
for almost nothing!!!!

CrimsonGT · 12-16-2005, 10:51 AM

i'll just put the 70s block on my wood chipper and build the 5.0 block, i'm gunning for around 450 hp flywheel

12-16-2005, 06:26 AM	#11
Shankin Senior Member Join Date: Jul 2005 Posts: 339	Re: mid 70 302? The earlier is stronger but unless you plan on making over 550 to the tires i would use the roller block. The other block will require a retrofit cam or lifters to use a roller set up. This can get costly. __________________ Pro Speed Performance 770 222 5015

12-16-2005, 08:04 AM	#12
Dale McPeters 5.0 Block/Walnut Cracker Join Date: May 2005 Location: Working.... Posts: 2,409	Re: mid 70 302? Best solution on 302 roller based setups that will be making lots of power.......... After market block such as the Dart 8.2 Block................. I now have seen first hand what happens to the stock 5.0 roller blocks when used in high performance applications. They do not last if you make good power with them...... Note this is just MHO....YMMV. __________________ '14 Dodge Challenger SRT8 392 6-speed

12-16-2005, 08:39 AM	#13
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	Re: mid 70 302? x2 To do it right you should really go Dart, R-302, or similar, but they take a big investment financially...trust me. The 289/302 engine from the factory was a "thin-walled casting" and included the 60's thru the 90's (except those made in Mexico). It kept the weight low. There are some minor differences, but they are all limited to aboout 550-600 at the wheels and even then, they're a time-bomb. For 400-450 rwhp, you'll only be wasting money on the retro-roller stuff...so keep the roller and put a 347 in it. __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

12-16-2005, 10:51 AM	#15
CrimsonGT Senior Member Join Date: Dec 2005 Location: tallapoosa, Ga Posts: 137	Re: mid 70 302? i'll just put the 70s block on my wood chipper and build the 5.0 block, i'm gunning for around 450 hp flywheel __________________ 2008 ford edge 1999 toyota solara v6 88 mustang lx v8 conversion (my on going project )