will they work?

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DusterBoy15

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my friend is going to be selling his 340 motor to me becasue he is getting a 360 for his scamp and i was wondering if the "302" heads will work good on the 340 just wondering because i have the 302 heads already so let me know. ps
i was planing on using 360 valves on the 302 heads 1.88 and 2.02 i think they were
 
360 intake valve is a 1.88, the 2.02 is a 340 valve, the head would need a full porting and window opening up for use on the 340 effectivly.
You could contact BJR here or one of the other head porters here on the site. I know theres about 5 or more pro porters here.

Combo dependent, you may want to start with a regular 360 (1,88 valve) head rather than a 302. This is an area where you must know everything else about your engine and cars combo before you do the work. No guessing and/or changing the combo later (And asking "Will it work" )
Know the specs and the intended use of your car and then things cn roll along well.
 
Hmm Then I Guess Ill Jsut Stay With The 318 Unless The Motor He Is Giving Me Is A Running One
 
I like the 360's extra torque. It's a get up and go feeling "NOW!" thing over the 318 which is...OK, I'm going....how fast again...OK, getting there...there, I made it for ya.
 
The 302's will raise the compression on the 340 because of the small chambers. This would be a good thing on a '72-'73 low-comp 340 but a bad thing on the high-comp 340, it would end up at or over 11:1


Chuck
 
He he he. And the narrow ports will choke it before long.
 
Whats the problem with the heads that are on the 340 now? They are most likely 915s, which are a very good (if not the best) head for the 340. They will already have 1.88/1.60 or 2.02/1.60 valves already, plus larger runners for more volume flow. Much better for the 340 than the 302s, in my opinion, Mike
 
kool im jsut deciding if i should go 340 but i guess the price and what comes with the motor will make me decide i mean hes gonna give me some headers too i just need to return the ones i just bought now. o well
 
You should check with your friend on what heads are presently on the motor. You can easily sell the 302 heads and put money towards the 340. I have a 318 that I'm installing 302s on, along with some other work and parts, but make no mistake about it, if a good running 340 were available to me for a very good price I'd jump on it in a NYC minute. JMO, Mike
 
i personaly wouldnt use the 302 heads on a 340 but thats just me and i like 340´s that is alowed to do what they do best, wish is turning highrpm...... if the price is good i would grab that 340 before your friend has a chance to change his mind...
 
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