[78w72]

Originally Posted by OCMDGTO

Port them and you'll have room for growth. I'd keep the 1.52 rockers and try the RPM or T2 which should take 100lbs off your nose. 3" headpipes before the mufflers should give you a couple tenths if you plan to go to the track. Ported KREs are 8ish weeks out, currently.

100lbs?

[OCMDGTO]

Originally Posted by 78w72

100lbs?

Aluminum heads and intake vs iron

[78w72]

Originally Posted by OCMDGTO

Aluminum heads and intake vs iron

OK that makes more sense, the way it read sounded like just the alum intake saved 100lbs.

[PunchT37]

If he ports the heads and intake, they`ll be even lighter.

[jhein]

Your motor is going to be similar to mine. I went with Edelbrock D ports. Unported but, my builder did do some clean up on them. Never been to the track but it runs very strong. It's a blast on the street..

[Dragncar]

There is not 100lbs difference between a pair of Pontiac iron heads vs aluminum heads. Not even close.
Now a big Rat engine with huge heads you might find 100lbs.
Pontiac heads are puny in comparison.

[Gach]

Going with aluminum heads and aluminum intake vs iron intake iron heads will definitely take off 100 lbs dam close, well ok maybe 98 lbs..LOL

[PAUL K]

From memory most aluminum heads are about 38 lbs. and iron 63. Wide ports are considerably lighter and make about 10 HP per pound lost when compared to a standard port aluminum head.

[slowbird]

Originally Posted by JLBIII

Update: I ordered the KRE heads almost 3 weeks ago after talking to Jeff Kauffman. They were delivered to my house yesterday. Going to be a busy winter here.

Do yourself a favor and lap the valves. If you don't know how find YouTube vids of it or pay someone

[Tim Corcoran]

Inflation is killer now days so the price to port them next year will be $$$$$$ more

[JLBIII]

Originally Posted by slowbird

Do yourself a favor and lap the valves. If you don't know how find YouTube vids of it or pay someone

Thanks Slowbird. Back around 74-75 I worked full time in an auto repair garage. The "old" mechanic there hand lapped the valves in a couple cast iron heads while I was there. I helped him with one set. That's about the lot of my experience with lapping. With the loss of feeling in my hands and questionable eyesight I wouldn't feel comfortable attempting to lap the valves in a pair of costly aluminum heads. I had planned to take the heads to a shop that specializes in head work to have them checked over before installation.