86 heads E6SE

mnbf · Sep 14, 2004

Kinda new to the whole 5.0 thing but i was just wondering if there is away to
rework \ grind the E6SE heads so they dont have the heart shape and so they would flow better.. any input would be good
p.s. i know there garbage but im not spending money on heads and i got these free so yea....
p.s.s. im makeing a motor to go in my moms 77 mustang so im not trying to make a drag car lol thanks for input

Ronstang · Sep 14, 2004

It wouldn't be worth the effort or expense. Use them for trot line weights because that is all they are good for, unless you need a heavy duty doorstop.

LMan · Sep 14, 2004

if its your mom's car, dont do anything....put em on.....

D.Hearne · Sep 14, 2004

Don't remove anything other than the sharp edges, those E6SE chambers are actually larger than the better ( for HP production) E7TE heads. They cc out at about 68 cc's, the E7's are 64 cc. The E6's make excellant bottom end torque, better than the E7's but are about 25 hp shorter than the E7's on top.

D.Hearne · Sep 14, 2004

Ronstang said:
It wouldn't be worth the effort or expense. Use them for trot line weights because that is all they are good for, unless you need a heavy duty doorstop.

You really think that Canuck has any idea what a "trot line " is

I doubt he's spent any amount of time in deep east Texas.

ashford · Sep 14, 2004

actually if your not planning to use much rpm after 4500 they are probably the best head you can get. i had a set on my fox body then upgraded to lightly ported early 289 heads. i lost so much torque at lower rpms it made me sad. the ported heads didnt overcome them till about 4000rpm on an e303 cam.
as for tuning them up all you really need to do is unshroud the intake valves a bit, remove sharp edges from the combustion chamber(keep in mind not to go past the head gasket surface) radius the bowls and radius the pushrod bumps some with a dremel.

mnbf · Sep 14, 2004

other questions

witch cam \ intake would you reccomend.. just something cheap that works decent its a 77 block with the 86 heads
p.s. i heard u need special plugs for the E6SE heads

D.Hearne · Sep 14, 2004

What pistons are you running in the block? Dished or flat tops?

mnbf · Sep 14, 2004

stock?

Flat top

ashford · Sep 15, 2004

for your mother a small compu-pro or rv cam and a performer or action plus intake

ashford · Sep 15, 2004

D.Hearne said:
What pistons are you running in the block? Dished or flat tops?

oh yeah forgot the stock pistons on an e6 engine have a very small dish with 0 deck height.
was it the 73-76 or something else that had the undesirable deck hiegth

D.Hearne · Sep 15, 2004

The pistons that came with E6SE heads, are true flat tops, with no valve reliefs, no dish either. The reason for that, is the valve seats are located about 1/8 higher above the deck than in other small block heads.So there's no chance of the valves hitting the pistons, unless you swap on any toher set of small block heads. The valve stems are shorter on the E6SE's, enabling Ford to still use the stock length pushrods . The 72-76 pistons have huge dishes in them, that's why I asked, you don't want to use the E6SE heads with them ( I wouldn't use them in any motor)

mnbf · Sep 15, 2004

D.Hearne said:
The 72-76 pistons have huge dishes in them, that's why I asked, you don't want to use the E6SE heads with them ( I wouldn't use them in any motor)

what? they do have a huge dish? they look pretty flat to me besides the fact that they have 2 groves cut out from them

D.Hearne · Sep 15, 2004

I was talking about the 72-76 pistons, not the E6SE pistons

mnbf · Sep 15, 2004

umm

thats is what i was talking about i have a 74 block and a 77 block ( with a hole in it) and they he ther same pistions not dished.... so yea... maybe your thinking of 72-73 or maybe a mach 1 but im talking 74 and 77 mustang II you know the ugly ones

D.Hearne · Sep 15, 2004

If they don't have the dished pistons, it's entirely possible that they've be changed in the last 30 years. Ford dished the 302 pistons to lower the comp ratio in 72 , then in 77 or 78, they went to flattops, and the huge chambered D8OE heads, so the comp ratio stayed the same. As I recall those 72-77 pistons had about A 1/4" deep dish in them. Ditto for the 351W's too.

mnbf · Sep 15, 2004

so...

Well sense there not dished pistons would that mean they would be ok to work with the E6Se heads? even know i know the heads suck

D.Hearne · Sep 15, 2004

It would be better to use those heads with the flat tops, after all that's what Ford used with them, although they didn't use valve reliefs. The dished ones would lower the comp ratio too much.

mnbf · Sep 15, 2004

soo...

The pistons i have are flot top with little half circles in them... thoses would work good for these heads then?

Ronstang · Sep 15, 2004

86 heads E6SE

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