My new stock stroke 400 build

[Don Frelier]

Read Post #591 again.

(I'm thinking of getting heads for my Plymouth now, I'm blaming you DAVE!)
But I'm actually considering put a smaller cam in it, so there.

 

[qkcuda]

Don, I called Summit this morning and gave them the discount code DEALSP and they refunded me another $120.00 on top of the 10% off, so if you do order be sure to use the code.

 

[Don Frelier]

Don, I called Summit this morning and gave them the discount code DEALSP and they refunded me another $120.00 on top of the 10% off, so if you do order be sure to use the code.

OOOH that buys the head bolts.

Hopefully that Christmas bonus isn't just the "jelly of the month club".

 

[Dave6T4]

I talked to my machine shop guy yesterday and he thinks the head swap is a win/win. Higher compression and better flow, even with the small cam.

Another plus, I needed to fix a leaky valve cover gasket anyway!

It's not a Big Block, unless the valve cover gasket leaks!

 

[qkcuda]

Hey Don, does this make my build NEW again?????

 

[Don Frelier]

Hey Don, does this make my build NEW again?????

Nice try, but NO.

 

[HawkRod]

Hawk, you may recall that the stroker was originally dynoed using home ported 452 heads, and later switched to Performer RPM's. There may be a trend here?

Hey, I'm following the same sickness with my POS driver Vette. The engine wasn't right, and all the sudden it is getting a full rebuild and, you guessed it, aluminum heads...

 

[qkcuda]

Hawk, my buddy had a 78 Vette which he sent to my machine shop to be rebuilt. I spec'd what should have been a perfect cam for him. After he installed the engine it was a huge disappointment. We finally figured the problem had to be the smog heads. We changed them for a set of aftermarket iron heads. After I lashed the valves we took it for a ride, and it finally made the power we felt it should have all along.

 

[qkcuda]

My heads arrived safely today. I probably won't have time to unpack them until the weekend

 

[qkcuda]

I spoke to the machine shop today and he agreed with me on using the 1.6 rockers. He can get me a pretty good deal on PRW stainless steel rollers, and says he uses them a lot and has good luck with them. I'm headed down the rabbit hole Don.

 

[Don Frelier]

I spoke to the machine shop today and he agreed with me on using the 1.6 rockers. He can get me a pretty good deal on PRW stainless steel rollers, and says he uses them a lot and has good luck with them. I'm headed down the rabbit hole Don.

Wait til you spill some coolant.

 

[Orig69]

Rear main is good. Passenger valve cover is leaking though, another winter project.

When you have the valve cover off you can retorque some of the head bolts I believe a 1/8 to a 1/4 of a turn is possible.

 

[qkcuda]

I was able to unpack the new heads today. I have to say, for an entry level head they are very well finished. I laid some intake gaskets on them and the port match is dead on. There is hardly any ridge where the CNC machine cut ends. I didn't have an exhaust gasket to try, but they look just as good. I will disassemble and lap the valves to make sure .

 

[Dave6T4]

I was able to unpack the new heads today. I have to say, for an entry level head they are very well finished. I laid some intake gaskets on them and the port match is dead on. There is hardly any ridge where the CNC machine cut ends. I didn't have an exhaust gasket to try, but they look just as good. I will disassemble and lap the valves to make sure .

View attachment 1965494

View attachment 1965495

View attachment 1965496

View attachment 1965497

How nice. Wife's Christmas present, Dave? LOL

 

[qkcuda]

Our cruise in February?

 

[qkcuda]

I tried to remove a valve today, but my valve spring compressor wouldn't even move the spring, so off to the machine shop they go. Just so I could say I accomplished something, I decided to get the A/C stuff removed.

 

[Dave6T4]

I tried to remove a valve today, but my valve spring compressor wouldn't even move the spring, so off to the machine shop they go. Just so I could say I accomplished something, I decided to get the A/C stuff removed.

View attachment 1965961

I think I found your overheating problem. I hate those clutch fans! Just my experience.