If you are like me, you're always thinking about the next motor. Some folks put it to action and built one over the winter to build some steam fo0r 2016. Tell us about it (pics please)!
... started road-tuning the small block six 250cid turbo motor in the '74 Maverick. It uses a carbureted 80's BOP V6 turbo setup grafted onto the 250 . First stage is to get the project road-manageable and then to continue with equipping the Maverick for close to double the original RWHP. . . . . . have fun
I love the combo, the only thing I would do different is the air cleaner. While working in an auto parts store, I saw way too many of those come in where people were looking for new foam. After enough heat cycles, backfires and general age, the foam gets dry and eventually comes off and goes through the engine.
I have no finished pic's yet.. unless you just like to look at unfitted loose engine parts? This is my "mule motor" but as usual.. I got a little bit too carried away. lol Hand prepped stock '1974 block w/ 4.060" bore x 3.3" billet Nascar crank(1.889 Honda rod journals) = 342 CID @11.9:1 SCR Heavily ported/welded/filled RHS 165 cc heads with 8mm LS style 2.00"/1.57" valves/54cc chamber @ around 190 cc's Crower .150" offset 1.8 ratio intake/1.7 ratio exhaust rockers and custom Smith Bros 5/16" x .120" wall pushrods Manley Nextek LS polished style dual valve springs with Ti retainers and Ti locks Custom ground hydro roller camshaft with short travel roller lifters(no parts yet, may use 302HO style spider conversion instead) Probe Moleculite 350 gram pistons w/ 1.2, 1.3, 3mm total seal AP steel ring pack and lightweight 98 gram pins 5.43" Toyota H-beam connecting rods(Honda 1.889" journals) @ around 490 grams Hand ported oil passages in block with ported/blueprinted regular pressure oil pump Custom intake manifold with Holley Ultra HP 750(or equivalent) Custom stepped headers with merge style collector
Ive had this motor in for a couple months now but Ive been trying to get other stuff done to the car and havent put insurance on it yet so I havent drove it enough to even break it in yet. its an old 302 block with 1.7 roller rockers polished crank bored .030 over new cast pistons stock connecting rods stock rotating assembly gt40 heads weiand stealth dual plane intake manifold somewhere around 9 to 1 compression. holley carb I forget what teh cam is but it doesnt idle under 1k rpm honeycomb springs valve springs the lift on the cam I think the lift was somewhere like 540 I cant remember for sure was supposed to be 351 firing order but it wouldnt fire that way with this cam so it still has the 302 firing order msd dizzy digital programmable 6 al2 msd box msd 8mm wires I think the plugs are platinum doubl;e roller timing cain supposed to be putting out around 350 hp maybe slightly less nothing radical just a good runner
Probably been mocked up more than 20 times over but it feels like final assembly won't happen till forever and day from now. I'm hoping to have the shortblock done in the next 4-6 weeks and the block is at the machine shop being punched .060 over right now. Topend is more like 3 months unless work gets really busy in which case I will have more money than time. Fortunately my oldest boy's finally helping me with some of the grunt work and we're shooting for this years Summer Nationals in July. We're both thinking that not too many people, if any, will guess the power number based on how the car will probably look when they set it up on the rollers. lol My wife says my taste for power is well beyond my means and will only lead to more insurance troubles like my last ride did. Sometimes I could swear that woman has a crystal ball hidden someplace. Either that or she's a gypsy and is unknowingly jinxing us both. lol
Slight difference betwen this one and the old OEM design. lol Started hand polishing my new crank last night and lots of bad memories and backaches came back to mind. After doing the last one for my SBC, told myself that I wouldn't do this ever again but the rem finishing(plus shipping) is just too damned expensive to even consider doing right now. Should consume about 15 - 20 hours of labor and around $50 bucks in materials but should be well worth it when it finally ends up in my other AL block later on. Extra center counterweights will be good for high rpm too. IF.. I don't blow this stock block deal up and trash it.
