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Wanting to build 302 V8 RX-7... should I buy this motor?

Wanting to build 302 V8 RX-7... should I buy this motor?

Old 02-05-10, 07:12 PM
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Wanting to build 302 V8 RX-7... should I buy this motor?

Hey guys, my girlfriend's brother is getting ready to pull the engine from his 86 Mustang. It's been in the car for 100 miles and around 7 passes and was broken in correctly. Synthetic oil has been used and things were done right. He is currently building a stronger setup because he wants to shoot for over 1000 WHP. He has already bought a new bottom end, so he's wanting to sell the old one. Here's a general idea of what's in it:

C8 302 block .030 over
ARP studded mains
SRS forged 408/418 pistons - standard valve reliefs
5.4" ultralight scat rods
cast 3" crank (2m)
Perfect Circle ring package
Napier second
light oil.
Powerbond balancer
28oz imbalance

He's wanting 1200 dollars for it and will throw in his spare engine stand. I know that the block is the strongest 302 block you can get without spending a good chunk on an aftermarket block. This motor when it was N/A spun 8500 RPM without issue or coming off balance. Also, the crank is a Boss steel crank which is also extremely strong and one of the best you can use without also spending a lot on an aftermarket crank. I know for sure those rods are very expensive as they are Scat. The motor was built by an engine builder in Chicago that's been doing engines for years and years. Everything has been balanced, honed, bored, etc. The balancer was balanced specifically to that engine along with the rotating assembly being balanced also.

What do you guys think? Should I pick it up?
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Old 07-08-18, 10:09 PM
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I know it's an older post but I wouldnt go for a 302. I would go for either a 383 or a 402 small block. All the power of a big block but In the smaller motor. My 383 made around 600hp without forced injection or nitrous
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Old 09-18-18, 07:23 AM
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I'm running a 302 out of a 91 mustang . Here are the specs.
302 ci Ford Production block (new bearings, gaskets)
9.5 1 TRW Forged Pistons, production rods & crankshaft
Competition Cam valve train. Heavy-duty valve train including titanium keepers, Fluidamper, reduction pulleys
Stewart Warner water pump.
Ford Motorsport Cam F-303 226 intake duration at.050", and a 226 exhaust duration at .050". 0.512" intake lift with 1.6 rockers.
Edelbrock ported RPM aluminum cylinder heads by J&P Performance
Canton road race oil pan and windage tray 7 litres with accusump.
Accusump oil system
Edelbrock ported RPM intake manifold by J&P Performance
Shorty headers side exit exhaust system.
#24 injectors
75mm custom billet throttle body
Paxton Fuel pressure regulator
Aluminum 1/2" fuel rails
K&N air filter

The heads and intake are heavily ported though. It doesn't make a ton of HP but with the stock 4:11 and T56 the combo make for some great acceleration. What I really like about it is it's dead nuts reliable. I use megasquirt management.
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