Budget 429 race engine.
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Fleet Mechanic
Joined: Jan 2012
Posts: 1,668
Likes: 13
From: Saskatchewan
Budget 429 race engine.
So just like the title reads I'm going to be building up my thunder jet into a very budget minded build. With D0VE-C heads and flat top Pistons a .060" overbore what kind of compression would it be running? I'm thinking something along these lines.
Flat tops
Mechanical flat tappet cam
Home ported D0VE heads
Maybe larger valves, maybe not but definitely better valve springs
Big fenderwell headers ( maybe home built)
RPM air gap intake
Big carb thinking 750-850 double pumper
Recurve dizzy
This engine has very few miles since its rebuild and going to try and build it without going to a builder. It's going into a 79 F150 mud truck. This truck will see 0 street duty just straight line mud racing. The class I'm going into will have trucks running close to 800hp or better so I'm going to get my butt handed to me. I just want to get my foot into the door and be able to have a little fun. If you guys have any ideas or opinions that would be great. Thanks.
Flat tops
Mechanical flat tappet cam
Home ported D0VE heads
Maybe larger valves, maybe not but definitely better valve springs
Big fenderwell headers ( maybe home built)
RPM air gap intake
Big carb thinking 750-850 double pumper
Recurve dizzy
This engine has very few miles since its rebuild and going to try and build it without going to a builder. It's going into a 79 F150 mud truck. This truck will see 0 street duty just straight line mud racing. The class I'm going into will have trucks running close to 800hp or better so I'm going to get my butt handed to me. I just want to get my foot into the door and be able to have a little fun. If you guys have any ideas or opinions that would be great. Thanks.
Thread Starter
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Fleet Mechanic
Joined: Jan 2012
Posts: 1,668
Likes: 13
From: Saskatchewan
Also I don't care if it barely idles and has no vacume as long as it screams around 6000rpm. But my main concern is what compression ratio it will have with these heads and flat tops. Factory is around 11:1 so I'm thinking 13:1 ish? I'd actually prefer to run it on race fuel. Any ideas??
Thread Starter
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Fleet Mechanic
Joined: Jan 2012
Posts: 1,668
Likes: 13
From: Saskatchewan
Yes that's a good point. I was just going to use the stocks rods being its prolly going to be well under 500hp. Maybe I'll go crazy and get some ARP studs for them. Thanks for your input.
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Fleet Mechanic
Joined: Jan 2012
Posts: 1,668
Likes: 13
From: Saskatchewan
Are the cranks a direct swap? Can I leave the 429 rods and Pistons? It came with a comp cams Exteme marine cam and valve springs so I'll prolly throw that in and port the exhaust side of the heads and run it as is.
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Fleet Owner
Joined: Jul 2006
Posts: 20,359
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From: Mi'kma'ki
pistons too.i just noticed it's recently already been reman.why start with this engine then? the 429 and 460 blocks are the same.i would sell the reman 429 to someone who wants it.since your already going to bore and reman an engine,you should start with a 460 in need of a reman.you'll be $ ahead.
for mud running,you really want all the grunt you can get.you should look into stroke kits and reman a 460.sell the quicker revving 429 to someone with a car or a sports/street truck.
for mud running,you really want all the grunt you can get.you should look into stroke kits and reman a 460.sell the quicker revving 429 to someone with a car or a sports/street truck.
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Thread Starter
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Fleet Mechanic
Joined: Jan 2012
Posts: 1,668
Likes: 13
From: Saskatchewan
pistons too.i just noticed it's recently already been reman.why start with this engine then? the 429 and 460 blocks are the same.i would sell the reman 429 to someone who wants it.since your already going to bore and reman an engine,you should start with a 460 in need of a reman.you'll be $ ahead.
for mud running,you really want all the grunt you can get.you should look into stroke kits and reman a 460.sell the quicker revving 429 to someone with a car or a sports/street truck.
for mud running,you really want all the grunt you can get.you should look into stroke kits and reman a 460.sell the quicker revving 429 to someone with a car or a sports/street truck.
Lead Driver
Joined: Mar 2004
Posts: 8,922
Likes: 153
Your buying pistons anyways so just find a 460 crank and get the extra cubes. The valve train will take some thought and investigating to get the right length push rod to get the geometry right & you may have to mill some off the rocker stands to get things right. Check retainer to guide clearance, you probably will need to cut the guides down some. You will have cut the spring pads for seat cups. A solid cam requires a double valve spring. Since you are just going to lean on this engine I'd consider bigger valves too.
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