302 heads

[71_dart_swinger]

hey guys so i found a pair of small block 302 heads ya know heart shaped close chamber heads , i know the y have like the 1.77 intake and 1.50 exuast valves or something like that. im curious if any one knows if i can put some 2.o2 and 1.60 s in them i can get the heads for almost noghint to put on my 360 thanks guys

 

[DusterBoy15]

yes you can but most will say not worth it... i also have 360 heads for sale

 

[71_dart_swinger]

so curious wut would not make it worth it. i have 360 jay heads on my 360 right now wut is the down fall to the 302 heads

 

[DusterBoy15]

people would say go to a better head worth putting money into

 

[daredevil]

302s have a fast burn swirl port design but the flow numbers are better suited to a 1.88 intake valve. Type 302 heads in the search and you will find a lot of info on this

 

[rumblefish360]

The 302 is the head you want for a small displacment engine, IE 273/318/330 cubes. The head can be ported out to flow excellent and best used with a 1.88/1.60 max size valves on the small displacement engines.

On a 360, I would save time, money and effort by topping it off with small valved 360 heads. Mill them for compresion or use as is with piston replacement.

 

[C130 Chief]

The 302 heads are great for a street driven 318 for 2 reasons, first they have smaller ports. This helps throttle response on a mild cammed small displacement engine. And second they have smaller chambers which help make compression in a 318.

The small ports can be ported to flow as well as a stock "J" head, so if you spend enough money you'll only go a little slower. The 2.02 valve gains you nothing in the small 302 chamber due to valve shrouding, 1.88 is plenty. The small chamber might raise your compression too much with a 360, and with the OEM pattern dished piston, you'd have a less than ideal chamber shape.

Ever wonder why Chrysler never put small port heads on the 360? Think about it!