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**CC69Rat** · 10-02-2012, 04:27 PM

that 290hp GMPP 350 sounds good for what it is .. I had one about 14 BTDC, Flows, HEI, headers, RPM intake, 650 Holley. It's pretty impressive. I'm pretty sure they are around .222 (?) Something like that .. I can't recall. It had a decent lick to it.

One problem .. and this has been years ago. As you may or may not be aware, those engines are built in Mexico. Not that that's a bad thing, or the reason why .. But, there was a QC issue with them having the wrong valve seals in them. Mine ended up having 4.3L seals in it. It started leaking oil just enough to cause it to smoke out the exhaust. Replaced the seals and it was fine.

Again .. just FYI.

10-02-2012, 04:27 PM	#15
CC69Rat Senior Member Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,205	Re: I Need a turn key engine for my 72 C-10 that 290hp GMPP 350 sounds good for what it is .. I had one about 14 BTDC, Flows, HEI, headers, RPM intake, 650 Holley. It's pretty impressive. I'm pretty sure they are around .222 (?) Something like that .. I can't recall. It had a decent lick to it. One problem .. and this has been years ago. As you may or may not be aware, those engines are built in Mexico. Not that that's a bad thing, or the reason why .. But, there was a QC issue with them having the wrong valve seals in them. Mine ended up having 4.3L seals in it. It started leaking oil just enough to cause it to smoke out the exhaust. Replaced the seals and it was fine. Again .. just FYI. __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)