Quote:
Originally Posted by Baron Von Zeppelin
10hp difference by factory ratings, both are under-rated to start with. lol
Ram4 was only 4hp more than Ram3, factory rating.
Was just asking to confirm because the HO version is extremely rare to find in a 70 Fullsize. The YH/15 is no slouch by any means whatsoever.
Have only encountered 1 in person, in my area, in past 30 years.
It was a Gold 2dr hardtop Bville with Posi Rear
Have encountered probably close to 20 Fullsize with YH/15.
So it sparked some extra interest.
Super car and you are very lucky to have gotten it.
It looked great parked on Daytona Beach
|
Baron is so right with his comment that the YH 360 hp 455 for 1970 is no slouch. My brother and I recently dyno'd a '70 YH 455 with #15 heads (small valves & all) that has 9.9:1 static compression, factory intake & Q-jet, factory log exhaust manifolds, with the only deviation being a Summit 2802 cam & lifters with Comp Cams 995 springs. We didn't bother with installing screw-in rocker studs, we just had them pinned like in the good old days. It made 390(+) hp at 4600 and 512(+) torque at 3400 thru the logs with 2-1/2" headpipes without fine tuning. We felt confident 400(+) hp and 525 torque was within reach if we had more time. This was with 93 octane gas, not race gas.
Have fun! Dennis