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BillK

03-30-2021 06:43 PM

Replacement for 088 heads ?

Hey guys,
I am rebuilding a 454 MPI engine and need to replace the 088 heads. Looks like some guys have had issues with the Enginequest heads so that leaves me with World Products or a GM performance part head. The World heads are cut for 2.300 valves and I am not sure about that in a 454. The GM heads (12562925) are cut for 2.18 intakes but that is not a big deal to open them to 2.19" The engine has been redone before and is not stock but has been running great for about 400 hours. It burned up a piston due to a bad injector. I want to try to keep the combination as close as possible.

I think I have talked myself into the GM head but just figured I would see if there were any other opinions.

Thanks,
Bill

GPM	03-30-2021 07:26 PM

Maybe look at the Dart Iron Eagle

sailtexas186548

03-30-2021 07:41 PM

I have only read two bad reports on the EQ heads. One the guy had valve guide angle issues (allegedly), the other actually ran them for some hours and said the valve seats were “soft”.

what info are you referring to?

phragle

03-30-2021 07:55 PM

I have AK racing aluminum heads and quite happy with them.

adk61

03-30-2021 08:05 PM

AK Racing

Quote:

Originally Posted by phragle (Post 4783724)

I have AK racing aluminum heads and quite happy with them.

I can help.. feel free to call Al 905 252 0592

outlaw26

03-30-2021 08:42 PM

I have new world products grumpy jenkins heads. I have the ovals 269s and rectangular ports in 320 and 345.

BillK

03-30-2021 08:48 PM

Quote:

Originally Posted by sailtexas186548 (Post 4783714)

A couple of threads here and also one of my friends at another machine shop had a set and said that the guides and seats were finished terribly. I am also a little leery of the 2.300 valves.

BillK

03-30-2021 08:51 PM

Quote:

Originally Posted by outlaw26 (Post 4783745)

I have new world products grumpy jenkins heads. I have the ovals 269s and rectangular ports in 320 and 345.

I can get the World heads direct myself. I dint think they were still making the Grump heads ?? Will they work on a Gen6 block ?

BillK

03-30-2021 08:53 PM

Quote:

Originally Posted by adk61 (Post 4783734)

I can help.. feel free to call Al 905 252 0592

Dont want Aluminum. Like I said I dont want to change this combination any more than absolutely necessary.

BillK

03-30-2021 08:59 PM

Quote:

Originally Posted by GPM (Post 4783709)

Maybe look at the Dart Iron Eagle

They have a raised exhaust port.

outlaw26

03-30-2021 09:36 PM

Quote:

Originally Posted by BillK (Post 4783748)

I can get the World heads direct myself. I dint think they were still making the Grump heads ?? Will they work on a Gen6 block ?

yes they still make them and they will work on a gen6. $500 each for bare castings. There brand new. I have a pallet load of them.
https://cimg8.ibsrv.net/gimg/www.off...bb90575768.jpg

hogie roll

03-31-2021 07:10 AM

Quote:

Originally Posted by BillK (Post 4783750)

They have a raised exhaust port.

Brodix has options with out raised exhaust

Mbam	03-31-2021 07:45 AM

Actually Mercury is offering new heads. Probably not the least expensive option but should be the closest to what you have. Not sure who makes the castings.

https://www.mercruiserparts.com/merc...-head-complete

https://www.mercruiserparts.com/merc...-head-complete

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